[Elecraft] K1 Full (Unbuilt) Kit For Sale
Probably a long shot but does anyone have an unbuilt Elecraft K1 Kit squirreled away that they are willing to sell? Thanks for your time Josh -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 sold
Thanks for everyone that has contacted me about my K1, it has been sold. 73's KC6AUP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft K1 for sale - Loaded
I have a barely used Elecraft K1 for sale (S/N-01351), bought the kit back in 2002, I just needed something to keep me busy, so I bought it and built it.I love the receiver on this baby, and used it for a lot of weak signal stuff, I have replaced it with a K3, so I'm looking at selling it. It's a 4 band unit, not a 2x2 swap, 15,20,30, and 40 meters, has the Noise Blanker, ATU-4-bands, back light LCD, and the KC6AUP 3d printed folding stand installed. Basically everything except the internal battery kit. I have the original assembly manual with my build notes in it, with my adjustment notes made during the build, as well as the other manuals that came with the kit. I'm asking $500, and will take Paypal, we can work out how you want to do the shipping. 73's Denis KC6AUP -- There is no future until we settle our past... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] FS: Elecraft K1
For Sale: Elecraft K1-4 (SN01552). Radio has 4 bands (40/30/20/15). Also includes the ATU, NB, manuals and power chord. The radio is in good shape and 100 % working. Pictures available on request. $425 shipped priority mail to US Only Thanks Harry NK9R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 Stand 3d Printer
Hi Dennis, excellent job. Many thanks for sharing it. Can you advise which direction on the bed is recommended in slicer please? I am asking as the orientation on the printing plate will be most important for supports... Thanks, Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 Stand 3d Printer
Very nice. I went a less imaginative direction. A replica of the original K1 stand. https://photos.app.goo.gl/1WMjCbeJmLmmJRKf8 https://photos.app.goo.gl/y7FnAUmqgtPQy5ft6 Didn't think it was appropriate to post on Thingiverse as it's a copy of a proprietary design. I did it as a learning exercise the first week or so I had the printer. I already have an original one (hi). Eric KE6US On 10/5/2019 2:31 PM, Denis Dimick wrote: Since Elecraft hasn't had stock on the K1 stand for ages, N3XKB and myself, designed one that can be 3d Printed. I posted it on Thingiverse for anyone that would like to print one out. https://www.thingiverse.com/thing:3843950 73's Denis KC6AUP -- There is no future until we settle our past... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to eric.c...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 Stand 3d Printer
Since Elecraft hasn't had stock on the K1 stand for ages, N3XKB and myself, designed one that can be 3d Printed. I posted it on Thingiverse for anyone that would like to print one out. https://www.thingiverse.com/thing:3843950 73's Denis KC6AUP -- There is no future until we settle our past... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 20m power out
Lloyd, The first thing you should do is adjust the Pre-mixer and RF Bandpass filters for the 20 meter band. See the K1 manual for the adjustment procedure. If that does not bring the output up to at least 5 watts (when using a 13.8 volt or greater power source), then suspect the 22MHz crystal used for the 20 meter mixer. 73, Don W3FPR On 9/9/2019 9:14 PM, LL wrote: I recently bought a two-band K1, s/n unknown. It puts out 6W on 40m, but only one watt on 20m, measured with a WM-2 and a dummy load... and the display on the rig. Internal ATU installed. 13+V supply. What to check first? etc. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donw...@embarqmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 20m power out
> I recently bought a two-band K1, s/n unknown. > It puts out 6W on 40m, but only one watt on 20m, > measured with a WM-2... The most likely problem is misalignment of band 2 of the KFL1-2. Perform a realignment of the 20m portion per the K1 manual. Don't waste too much time optimizing the settings of the KFL1-2 for maximum receiver sensitivity. The same inductances must be adjusted for maximum transmitter power output, and those adjustments are far far more critical. OR...for a direct simple shortcut, put the K1 on 20m in TUNE mode and peak L3, L4, L7, and L8 for maximum power output. Mike / KK5F __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 20m power out
I recently bought a two-band K1, s/n unknown. It puts out 6W on 40m, but only one watt on 20m, measured with a WM-2 and a dummy load... and the display on the rig. Internal ATU installed. 13+V supply. What to check first? etc. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 Transmit Offset Adjustment
Thanks, Don! 73, KQ7TJ -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 Transmit Offset Adjustment
Thank you! On Tue, Aug 27, 2019, 4:28 PM Don Wilhelm wrote: > Tom, > > You can reach the trimmer with the band board and tuner in place. Just > put the OFS jumper in place and follow the instructions in your original > manual. The newer K1s have a switch on the bottom instead of the OFS pads. > > 73, > Don W3FPR > > On 8/27/2019 6:59 PM, Tom Johnson wrote: > > In order to reset my TX Offset do I need to remove the Antenna Tuner, or > can > > I leave it in place and just install a jumper between the OFS pads? > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 Transmit Offset Adjustment
Tom, You can reach the trimmer with the band board and tuner in place. Just put the OFS jumper in place and follow the instructions in your original manual. The newer K1s have a switch on the bottom instead of the OFS pads. 73, Don W3FPR On 8/27/2019 6:59 PM, Tom Johnson wrote: In order to reset my TX Offset do I need to remove the Antenna Tuner, or can I leave it in place and just install a jumper between the OFS pads? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 Transmit Offset Adjustment
In order to reset my TX Offset do I need to remove the Antenna Tuner, or can I leave it in place and just install a jumper between the OFS pads? -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 Transmit Offset Adjustment
I just redid my Transmitter Alignment on my K1, using a wattmeter, which I didn't have when I originally built it. I have removed the Antenna Tuner - now on to redoing my TX Offset - to do that do I leave the Antenna Tuner off and proceed, or do I reinstall the Antenna Tuner and then proceed with the TX Offset Alignment? (As described on page 47 of the manual - the part where you install a jumper between the OFS pads, turn the AGC OFF, set power to 1.o watts and Adjust C13.) Any help is much appreciated - I've determined I'm not transmitting on the same frequency on which I'm receiving and am thus attempting to get the TX Offset properly set. Tom KQ7TJ "I am an old man and have known a great many troubles, but most of them never happened." - Mark Twain __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 40m/20m for sale
I have K1 s/n 3502 for sale. It has 40M and 20M on board and the KAT1 antenna tuner. From the pictures you can see that I have added a homebrewed tilt stand that also doubles as a convenient carrying handle. Included will be a Texas Instrument 12V, 2A power supply. $375 shipped to CONUS. Paypal preferred, but will be flexible. See pictures at http://w5la.net/images/K1.jpg and see it in action at https://www.youtube.com/watch?v=15XeF4mIScw=6s. If interested, contact me via email to j...@w5la.net. 73, Jim W5LA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 Filter Board
I am in search of a 2 band or 4 band filter board for a K1. Any help would be appreciated, you may contact me by e-mail at aaherb...@hotmail.com. Andy NR8N __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 retrofit backlight mod
Before a backlight kit was ever available for the K1 from Elecraft, I built my own and was able to position it at the side of the LCD without tearing everything apart. I used a single white LED, and if I remember correctly I filed the face of the LED plastic body to make the light scatter better. I used a FET connected as a series current limiter to give a few milliamps of current, and picked up a switched 12 volt from somewhere on the circuit board. It works fine. Dave AB7E On 7/6/2019 3:53 PM, Don Wilhelm wrote: Lloyd, The kit for built K1s included the LCD p/n E600015, for unbuilt K1s it was not included. In order to install the backlight the LCD must be removed and will most likely be destroyed in the process. The easiest way to remove it is to cut the pins close to the LCD body and then remove them one at a time. Before doing anything, check with the Elecraft sales office to be certain both the p/n E600015 and the backlight kit for an unbuilt K1 are available. 73, Don W3FPR On 7/6/2019 4:34 PM, LL wrote: The backlight mod on the Elecraft site says that it's for unbuilt kits. Can it be added to a built kit? If not, is there a mod for that, somewhere...? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to xda...@cis-broadband.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 retrofit backlight mod
If not, you might still be able to source the relevant parts. I made mine before the official kit existed by ordering parts from Mouser. Mine has a red backlight instead of the Elecraft green :). -kb7psg On Sat, 6 Jul 2019, Don Wilhelm wrote: Lloyd, The kit for built K1s included the LCD p/n E600015, for unbuilt K1s it was not included. In order to install the backlight the LCD must be removed and will most likely be destroyed in the process. The easiest way to remove it is to cut the pins close to the LCD body and then remove them one at a time. Before doing anything, check with the Elecraft sales office to be certain both the p/n E600015 and the backlight kit for an unbuilt K1 are available. 73, Don W3FPR On 7/6/2019 4:34 PM, LL wrote: The backlight mod on the Elecraft site says that it's for unbuilt kits. Can it be added to a built kit? If not, is there a mod for that, somewhere...? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to joberreu-elecr...@moselle.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 retrofit backlight mod
Lloyd, The kit for built K1s included the LCD p/n E600015, for unbuilt K1s it was not included. In order to install the backlight the LCD must be removed and will most likely be destroyed in the process. The easiest way to remove it is to cut the pins close to the LCD body and then remove them one at a time. Before doing anything, check with the Elecraft sales office to be certain both the p/n E600015 and the backlight kit for an unbuilt K1 are available. 73, Don W3FPR On 7/6/2019 4:34 PM, LL wrote: The backlight mod on the Elecraft site says that it's for unbuilt kits. Can it be added to a built kit? If not, is there a mod for that, somewhere...? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 retrofit backlight mod
The backlight mod on the Elecraft site says that it's for unbuilt kits. Can it be added to a built kit? If not, is there a mod for that, somewhere...? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 Intermittent Frequency Instability
Chris, First check the 10 turn VFO pot and its connections on the front panel board. If the pot itself is the older one with a blue plastic shaft (remove the knob to check), replace it with the newer metal shaft pot. If that is not the problem, turn to sheet 1 of the RF Board schematic. Reflow the soldering for all the components in the VFO area. 73, Don W3FPR On 7/5/2019 7:01 PM, Christopher Bowne wrote: My 40 and 20 meter K1 has developed intermittent frequency instability and sometimes complete loss of ability to tune (frequency display jumps and stays on 68.0 nominal on 40 and 63.0 nominal on 20). Lightly “mechanically agitating” the circuit board just behind the front panel will bring it back into stable operation, but any sort of movement (I run it QRP mobile in a Tacoma 4x4) will throw it out of whack again. Three modes - normal stable, squiggly unstable, and locked at nominal 68 or 63 above 7.0 or 14.0 as noted above. Seems like a bad solder joint or solder whisker somewhere. Any suggestions on where to look? K1 S/N 0291. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 Intermittent Frequency Instability
Hi Chris, Instead of spending time troubleshooting I would start with re-soldering the Front Panel Board and connections. There are not that many components so it shouldn't take that long. I had an intermittent problem on my K1 and re-soldered the whole RF Board. Not very sophisticated but it works. Good luck! Bert VE3NR On 7/5/2019 7:01 PM, Christopher Bowne wrote: My 40 and 20 meter K1 has developed intermittent frequency instability and sometimes complete loss of ability to tune (frequency display jumps and stays on 68.0 nominal on 40 and 63.0 nominal on 20). Lightly “mechanically agitating” the circuit board just behind the front panel will bring it back into stable operation, but any sort of movement (I run it QRP mobile in a Tacoma 4x4) will throw it out of whack again. Three modes - normal stable, squiggly unstable, and locked at nominal 68 or 63 above 7.0 or 14.0 as noted above. Seems like a bad solder joint or solder whisker somewhere. Any suggestions on where to look? K1 S/N 0291. Chris, AJ1G Stonington CT from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ve...@bell.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 Intermittent Frequency Instability
My 40 and 20 meter K1 has developed intermittent frequency instability and sometimes complete loss of ability to tune (frequency display jumps and stays on 68.0 nominal on 40 and 63.0 nominal on 20). Lightly “mechanically agitating” the circuit board just behind the front panel will bring it back into stable operation, but any sort of movement (I run it QRP mobile in a Tacoma 4x4) will throw it out of whack again. Three modes - normal stable, squiggly unstable, and locked at nominal 68 or 63 above 7.0 or 14.0 as noted above. Seems like a bad solder joint or solder whisker somewhere. Any suggestions on where to look? K1 S/N 0291. Chris, AJ1G Stonington CT from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 4-band board wanted
INCREDIBLE RESULT!!! I called Elecraft, and a few hours later, they called back: they found ONE two-band board, and they're kitting it up with 20 and 80 for me. I'll have to swap the boards to change, but I'll have a four-band K1. EXTREMELY satisfied customer, still. On Mon, Jul 1, 2019, 9:35 AM Don Wilhelm wrote: > Lloyd, > > Elecraft does still have some band kits for the 2 band board. Order the > kit for the band you wish to switch to. > There are no new 2 band boards available from Elecraft. > > Yes, if you can find another 2 band board, you can change the band > boards easily. The K1 will remember the OPF offsets for up to 6 bands. > You only need to change the board and set the "b1" and "b2" menu > parameters to match the bands of the boards in use. > > 73, > Don W3FPR > > On 7/1/2019 9:25 AM, LL wrote: > > I'm acquiring a K1 with ATU, 30 and 40. Really would love to have 20 and > 80. > > > > If nothing else, I might be interested in seeing if it's possible to > rework > > the existing board for 20, instead of 30. > > > > Is it possible to have four bands on two boards - that is, not on a > > four-band board? > > might it be possible to swap them out to switch bands, if needed, and > only > > two-band boards are available? > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 4-band board wanted
Lloyd, Elecraft does still have some band kits for the 2 band board. Order the kit for the band you wish to switch to. There are no new 2 band boards available from Elecraft. Yes, if you can find another 2 band board, you can change the band boards easily. The K1 will remember the OPF offsets for up to 6 bands. You only need to change the board and set the "b1" and "b2" menu parameters to match the bands of the boards in use. 73, Don W3FPR On 7/1/2019 9:25 AM, LL wrote: I'm acquiring a K1 with ATU, 30 and 40. Really would love to have 20 and 80. If nothing else, I might be interested in seeing if it's possible to rework the existing board for 20, instead of 30. Is it possible to have four bands on two boards - that is, not on a four-band board? might it be possible to swap them out to switch bands, if needed, and only two-band boards are available? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 4-band board wanted
I'm acquiring a K1 with ATU, 30 and 40. Really would love to have 20 and 80. If nothing else, I might be interested in seeing if it's possible to rework the existing board for 20, instead of 30. Is it possible to have four bands on two boards - that is, not on a four-band board? might it be possible to swap them out to switch bands, if needed, and only two-band boards are available? Thanks. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 and AX1
I'm usually just an avid reader of this listserve, but lately the conversations have been about products that have really enhanced my hamming experience over the years. I got the K1 about 19 years ago, and the AX1 is my most recent toy from Elecraft Land. I have many toys from that land, so a few weeks ago I was taking my son to have his 12 mile run in a park here in NJ, and I thought I'd sit at a picnic table and try to make a few contacts. The K1 was the easiest to disconnect from my setup, so I grabbed it, a small 12v battery, and the AX1 for about two hours of playing in the WPX cw contest. During that time, I made 28 contacts (of course all were 599) on 20 and 15 running 5 watts. Many over 1000 miles in distance. What a rush! My only problem was how to connect the radial to the K1 since it has no easy ground connection. Solved by connecting the radial to the nut that holds the antenna connector to the case of the rig. A great day. There is serious mojo in both those products, I would never have believed that the AX1 would work that well. Nice to keep learning new thing, not only by following the list, but getting inspiration and acting on it as well. Thanks! 73 bob wb2udc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 boards open source?
Ahh ... very good point, Bob! I forgot that. I assume crystals can still be had from somewhere, though. I wonder if Elecraft kept their old stock of them. I'm copying the list on your reply since it was someone else who needed a new board, not me. 73, Dave AB7E On 6/10/2019 11:09 AM, Bob W7AVK wrote: Dave - To change bands with the K1 boards you also need to change the crystal. Good luck, 73 Bob W7AVK On 6/10/2019 10:33 AM, David Gilbert wrote: Unless I am mistaken (entirely possible), all of the K1 band filter boards were essentially the same except for the coils. I'd bet that there are several unused two band K1 filter boards out there ... the result of owners upgrading to the four band module. For example, I have an extra 40m/20m board left over from when I upgraded my K1, but I plan to hang on to mine. If you can find somebody willing to give theirs up, it shouldn't be too difficult to find the coil winding instructions for the bands you're interested in. There was even a guy who used to wind the coils for a small fee, and if he's still around he probably still has the materials for them. After all, you don't need a run of boards ... you just need one module. 73, Dave AB7E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 boards open source?
Unless I am mistaken (entirely possible), all of the K1 band filter boards were essentially the same except for the coils. I'd bet that there are several unused two band K1 filter boards out there ... the result of owners upgrading to the four band module. For example, I have an extra 40m/20m board left over from when I upgraded my K1, but I plan to hang on to mine. If you can find somebody willing to give theirs up, it shouldn't be too difficult to find the coil winding instructions for the bands you're interested in. There was even a guy who used to wind the coils for a small fee, and if he's still around he probably still has the materials for them. After all, you don't need a run of boards ... you just need one module. 73, Dave AB7E On 6/10/2019 8:57 AM, Douglas Hagerman via Elecraft wrote: Apologies in advance if this has been answered before. I can’t find it in the mailing list archives although surely it has come up already. I have recently realized that I “need” a 30 + 17 meter band filter board for my 40 + 20 K1. Obviously I have had 15+ years to make this realization, but I’m slow. After the recent fire sale, it appears that no more K1 parts are available from Elecraft. If they are no longer selling K1 kits, and have therefore apparently given up on the K1 as a profit-making activity, and given that the schematics and BOMs are already in the documentation, is there a source for the circuit board layouts so that third-party boards could be sourced? I suppose the board layout is copyrighted. Or could Elecraft make a run of bare boards? It should not be too hard to collect the required parts if the boards were available. Seems like there could be a small-volume continuing product availability stream somehow… Thanks. Doug, W0UHU. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 boards open source?
> On Jun 10, 2019, at 8:57 AM, Douglas Hagerman via Elecraft > wrote: > > Or could Elecraft make a run of bare boards? It should not be too hard to > collect the required parts if the boards were available. The actual problem is that the parts are no longer available. Wayne sent this to the list four days ago. > On Jun 6, 2019, at 10:56 AM, Wayne Burdick wrote: > > Correct on both counts. > > Trust me, as the designer of both the K1 and KX1 I have a soft spot for them > and would love to bring them back. But several of the critical parts became > impossible to source, and a substantial redesign would be required to work > around them. > > The good news: the KX2 is s much more radio, in a smaller package. We had > to go through the K1 and KX1 to get to the KX2, and we're not looking back :) > > 73, > Wayne > N6KR wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 boards open source?
Wayne has already addressed this, not too long ago. They aren't considering opening the K1 not only because of the circuit board layout (copyrighted) but also the IP embedded within the microcontroller. It's dead, Jim. On Mon, Jun 10, 2019 at 12:21 PM Mike Morrow wrote: > What you propose will very likely not be possible. > > Elecraft has always been very "outside the norm" for contemporary QRP kit > makers in NEVER providing PCB trace info for the kits that it sold. It is > deliberate company policy. > > I could have used such info a number of times after I built an early K1 > some 19 years ago. The late great Tom/N0SS was a helpful source of > physical high-quality photos of some of the PCBs that Elecraft made 15 > years ago. > > Mike / KK5F > > >I have recently realized that I “need” a 30 + 17 meter band filter board > for my 40 + 20 K1. Obviously I have had 15+ years to make this realization, > but I’m slow. After the recent fire sale, it appears that no more K1 parts > are available from Elecraft. > > > >If they are no longer selling K1 kits, and have therefore apparently > given up on the K1 as a profit-making activity, and given that the > schematics and BOMs are already in the documentation, is there a source for > the circuit board layouts so that third-party boards could be sourced? I > suppose the board layout is copyrighted. > > > >Or could Elecraft make a run of bare boards? It should not be too hard to > collect the required parts if the boards were available. > > > >Seems like there could be a small-volume continuing product availability > stream somehow… > > > >Thanks. > > > >Doug, W0UHU. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to r...@wc3t.us -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40°45.68' N 75°17.33' W) Grid: *FN20is* __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 boards open source?
What you propose will very likely not be possible. Elecraft has always been very "outside the norm" for contemporary QRP kit makers in NEVER providing PCB trace info for the kits that it sold. It is deliberate company policy. I could have used such info a number of times after I built an early K1 some 19 years ago. The late great Tom/N0SS was a helpful source of physical high-quality photos of some of the PCBs that Elecraft made 15 years ago. Mike / KK5F >I have recently realized that I “need” a 30 + 17 meter band filter board for >my 40 + 20 K1. Obviously I have had 15+ years to make this realization, but >I’m slow. After the recent fire sale, it appears that no more K1 parts are >available from Elecraft. > >If they are no longer selling K1 kits, and have therefore apparently given up >on the K1 as a profit-making activity, and given that the schematics and BOMs >are already in the documentation, is there a source for the circuit board >layouts so that third-party boards could be sourced? I suppose the board >layout is copyrighted. > >Or could Elecraft make a run of bare boards? It should not be too hard to >collect the required parts if the boards were available. > >Seems like there could be a small-volume continuing product availability >stream somehow… > >Thanks. > >Doug, W0UHU. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 boards open source?
Apologies in advance if this has been answered before. I can’t find it in the mailing list archives although surely it has come up already. I have recently realized that I “need” a 30 + 17 meter band filter board for my 40 + 20 K1. Obviously I have had 15+ years to make this realization, but I’m slow. After the recent fire sale, it appears that no more K1 parts are available from Elecraft. If they are no longer selling K1 kits, and have therefore apparently given up on the K1 as a profit-making activity, and given that the schematics and BOMs are already in the documentation, is there a source for the circuit board layouts so that third-party boards could be sourced? I suppose the board layout is copyrighted. Or could Elecraft make a run of bare boards? It should not be too hard to collect the required parts if the boards were available. Seems like there could be a small-volume continuing product availability stream somehow… Thanks. Doug, W0UHU. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 -- Anyone want one?
I have a K1, SN 111, original owner. Works fine…. Anyone want to buy it? Rob — KT7L r1foll...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 extinct?
The K1 is as remarkable as the K2, for its small rugged box, it’s a power house feature packed rig. Gotta say its been in its case since I got the KX2. Remarkable rig. Leroy AB7CE -Original Message- From: Lane Sent: Thursday, June 06, 2019 7:50 PM To: Fred Jensen Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K1 extinct? Wow, I am really sad about that. After the K2 and a few K3's, I guess I waited too long thinking parts for the 4 band version would eventually be found. :( On Wed, Jun 5, 2019 at 8:58 PM Fred Jensen wrote: Yes, sad indeed, but predictable when the parts transmute to unobtainium in shorter and shorter periods. Rich, NU6T, and I traded radios while activating Leviathan Peak a number of years ago ... he ran my K2 for awhile, I played with his K1. I enjoyed my KX1 for all the years I had it, it even went through the Panama Canal, but given the choice between a KX1 and a K1, had I known, I've have gone for the K1. Just an incredible little, light, and fun QRP radio. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/5/2019 6:33 PM, Byron Servies wrote: > Yes, the K1 was sadly discontinued last year. > > 73, Byron N6NUL > >by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lmar...@mt.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 extinct?
Wow, I am really sad about that. After the K2 and a few K3's, I guess I waited too long thinking parts for the 4 band version would eventually be found. :( On Wed, Jun 5, 2019 at 8:58 PM Fred Jensen wrote: > > Yes, sad indeed, but predictable when the parts transmute to unobtainium > in shorter and shorter periods. Rich, NU6T, and I traded radios while > activating Leviathan Peak a number of years ago ... he ran my K2 for > awhile, I played with his K1. I enjoyed my KX1 for all the years I had > it, it even went through the Panama Canal, but given the choice between > a KX1 and a K1, had I known, I've have gone for the K1. Just an > incredible little, light, and fun QRP radio. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/5/2019 6:33 PM, Byron Servies wrote: > > Yes, the K1 was sadly discontinued last year. > > > > 73, Byron N6NUL > > > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to software.research.developm...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 extinct?
Yes, sad indeed, but predictable when the parts transmute to unobtainium in shorter and shorter periods. Rich, NU6T, and I traded radios while activating Leviathan Peak a number of years ago ... he ran my K2 for awhile, I played with his K1. I enjoyed my KX1 for all the years I had it, it even went through the Panama Canal, but given the choice between a KX1 and a K1, had I known, I've have gone for the K1. Just an incredible little, light, and fun QRP radio. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/5/2019 6:33 PM, Byron Servies wrote: Yes, the K1 was sadly discontinued last year. 73, Byron N6NUL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 extinct?
Yes, the K1 was sadly discontinued last year. 73, Byron N6NUL On Wed, Jun 5, 2019 at 5:48 PM Lane wrote: > Took a look at the new revamped website (or maybe I haven't been on it > for a while), and noticed there are no K1's listed. Is it true? > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to by...@n6nul.org > -- - Northern California Contest Club - CU in the Cal QSO Party 5-6 Oct 2019 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 extinct?
Took a look at the new revamped website (or maybe I haven't been on it for a while), and noticed there are no K1's listed. Is it true? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] WANTED, Elecraft K1
Hello all, I am looking for a K1. Unbuilt kit or built. Would like to have four bands. I have two nice KX1s and would be willing to trade towards the K1, or buy outright. Thx, Dennis DeAtley __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K1][K2] thoughts
Hi there! The K4 looks amazing! It will make a lot of people very happy, though I think Elecraft missed a trick not offering an optional 40lb lead base for it. When the K3s came out, I happily purchased a used K3/500 line and upgraded them. They are fantastic! I have used other peoples K3 setups on expeditions for years, and now I have a set for my own. They have already be wonderful. But, dang, I love my K1 and K2 (I have the complete"grey line"). They are the ones I actually want to turn on, and when I do, they are just so delightful to use. For Christmas, I even bought a new set of Bioenno batteries and solar panels just for them. So, yeah, I am very happy that Elecraft keeps pushing forward. It is a business; they must. But I still yearn for a new "hands on ham radio" kit. Maybe a mini-module, or a T2? Come to think of it, the T1 is the only kit I haven't built ... hmm. 73, Byron N6NUL -- - Northern California Contest Club - CU in the Cal QSO Party 5-6 Oct 2019 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Peter, After a K1 Reset, nothing needs to be adjusted, but you will have to do the menu related settings: STP, STL, b1 and b2 settings (b3 and b4 if a 4 band board) and CAL OPF. CAL OPF is not difficult, but does require a signal of known frequency on each band - it is just an adjustment of the displayed frequency. 73, Don W3FPR On 5/13/2019 11:45 AM, Petr, OK1RP/M0SIS wrote: Hi Don, perfect. many thanks for few hints. i will do it step by step. At first I will check physicaly the parts and soldering around the Q5. Then after I will try to measure the POWER voltage line (R10) for its stability. If needed i can replace both the Q5 and D18. the only I am worrying a bit about the factory reset if MCU/DAC sampling issue as I am not sure what should be re-aligned then after. I read in manual "VFO calibration etc." So I hope that it will not be needed... I will let you know soon. In any case many thanks Don for your assistance and help. 73 Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Petr, After the reset, you should not have to do VFO calibration, but you will need to set the VFO Offset (CAL OPF) in the menu. That requires only a known frequency signal for each band that is installed and button taps. 73, Don W3FPR On 5/13/2019 11:45 AM, Petr, OK1RP/M0SIS wrote: Hi Don, perfect. many thanks for few hints. i will do it step by step. At first I will check physicaly the parts and soldering around the Q5. Then after I will try to measure the POWER voltage line (R10) for its stability. If needed i can replace both the Q5 and D18. the only I am worrying a bit about the factory reset if MCU/DAC sampling issue as I am not sure what should be re-aligned then after. I read in manual "VFO calibration etc." So I hope that it will not be needed... I will let you know soon. In any case many thanks Don for your assistance and help. 73 Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi Don, perfect. many thanks for few hints. i will do it step by step. At first I will check physicaly the parts and soldering around the Q5. Then after I will try to measure the POWER voltage line (R10) for its stability. If needed i can replace both the Q5 and D18. the only I am worrying a bit about the factory reset if MCU/DAC sampling issue as I am not sure what should be re-aligned then after. I read in manual "VFO calibration etc." So I hope that it will not be needed... I will let you know soon. In any case many thanks Don for your assistance and help. 73 Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Petr, Check the VPOWER signal line to see if there is any DC level change. If is is a steady DC level, then try changing QW5 and/or D18. If VPOWER varies, then the MCU or DAC is causing the variation. In that case, I would try a Master Reset (See manual Reset to Factory defaults), but first record your menu settings and restore them after the reset. 73, Don W3FPR On 5/13/2019 4:06 AM, Petr, OK1RP/M0SIS wrote: Hi Don, many thanks for kind help and reply. Unfortunately I don't think its DAC sampling issue... I checked it happends on any power level (not depending to the power level setting) and it happends in my case only on 40m (band 1). Also I realized that the power variation is sometime 0.5W and sometime 2W... and even more sometime its jumping up and sometime jumping down. What is most strange is that when I am not touching the band switching button it seems to be stable > even on lower power (instead of pre-set power) it does not changes. I checked our second K1 which is for long time used by my daddy and I did not realized anything like that on this radio. I will try to verify all parts around the Q5 as you suggested. I will be happy for any other kind of hint or tips... - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi Don, many thanks for kind help and reply. Unfortunately I don't think its DAC sampling issue... I checked it happends on any power level (not depending to the power level setting) and it happends in my case only on 40m (band 1). Also I realized that the power variation is sometime 0.5W and sometime 2W... and even more sometime its jumping up and sometime jumping down. What is most strange is that when I am not touching the band switching button it seems to be stable > even on lower power (instead of pre-set power) it does not changes. I checked our second K1 which is for long time used by my daddy and I did not realized anything like that on this radio. I will try to verify all parts around the Q5 as you suggested. I will be happy for any other kind of hint or tips... - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Petr, There may be nothing wrong. The POWER control line originates at the U2 DAC on the front panel and is applied to Q5 on the RF Board. You should check all components associated with Q5 to be certain of the value and good soldering. Since the POWER signal line is derived digitally from data out of the MCU, it may be that the "problem" is simply one of digital resolution. If the real value is in between 2 DAC steps, the POWER output signal can vary between the two DAC steps causing the situation that you observed. 73, Don W3FPR On 5/10/2019 8:24 PM, Petr, OK1RP/M0SIS wrote: Hi all, so all TX part alignment went ok. All resistances, voltages and finaly power re-peaking is in spec. Also 5W test seemed ok until I noticed strange behavior > the power fluctuation on key down as same as after band switching... Short vid is here: https://youtu.be/lpf8GT09wv8 I am dissapointed as we thought to finish all work this evening successfuly. I have no idea what could be wrong as I replaced K1-3 relays on band module, checked all coils, caps, also diodes on RF board... :( Will be happy for any hints, Mni thanks in advance. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi Bert, Even I noticed that power jumps sometimes also down... not only up as shown on vid. It happends on band 1 - 40m in my case, band 2 - 20m seems ok. regards, - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi Petr, I've checked you video and interestingly enough I have the same or similar problem with my K1. Sometimes the power output goes to the full programmed output and pulls back 1 watt or so. It doesn't happen every time I transmit but quite often and I can't figure what's wrong. Looking forward to find a solution for both of us. 73 Bert VE3NR On 5/10/2019 8:24 PM, Petr, OK1RP/M0SIS wrote: Hi all, so all TX part alignment went ok. All resistances, voltages and finaly power re-peaking is in spec. Also 5W test seemed ok until I noticed strange behavior > the power fluctuation on key down as same as after band switching... Short vid is here: https://youtu.be/lpf8GT09wv8 I am dissapointed as we thought to finish all work this evening successfuly. I have no idea what could be wrong as I replaced K1-3 relays on band module, checked all coils, caps, also diodes on RF board... :( Will be happy for any hints, Mni thanks in advance. - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi all, so all TX part alignment went ok. All resistances, voltages and finaly power re-peaking is in spec. Also 5W test seemed ok until I noticed strange behavior > the power fluctuation on key down as same as after band switching... Short vid is here: https://youtu.be/lpf8GT09wv8 I am dissapointed as we thought to finish all work this evening successfuly. I have no idea what could be wrong as I replaced K1-3 relays on band module, checked all coils, caps, also diodes on RF board... :( Will be happy for any hints, Mni thanks in advance. - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi all, another work in lab on son’s K1 done. On KFL1-2 the K2,K3 relays replaced, L11,L12 reworked for correct 15t on cores (0.8uH)... Now its waiting for band module resistance re-check and re-tweaking TX part this evening. I wonder if it will be finished successfuly... - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi all, so another evening spent with K1... As Don suggested we stepped back and revised the band module for correct winding and resistance check. I found that all LPF cores are not correct. L9-L10 with 22t instead of 21t and L11-L12 with 14t instead of 15t for 40/20m band. So I am going to reworking them. Also we went thru voltage check on RF board and all seems ok according to alignment manual page. Finaly we re-checked all diodes for type and polarity as it is most common issue mentioned in troubleshooting manual pages. OK Next part - today evening... 73 - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 LED upgrade
Don, The kit showed up yesterday, and just wanted to thank you for it. Denis KC6AUP -- There is no future until we settle our past... On Wed, Apr 24, 2019 at 9:06 AM Don Wilhelm wrote: > Denis, > > Are you referring to the K1 LCD Backlight Kit for a built K1? If so, I > have one available. $29.95 plus shipping. > Please let me know if you want it and I can compute the shipping cost - > USPS Priority Mail. > > 73, > Don W3FPR > > On 4/24/2019 10:24 AM, Denis Dimick wrote: > > I was wondering if anyone has a LCD LED upgrade they would be willing to > > part with? > > > > Denis > > KC6AUP > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 LED upgrade
Yes, that is the one. My address is is current in the database Denis KC6AUP On Wed, Apr 24, 2019, 09:06 Don Wilhelm wrote: > Denis, > > Are you referring to the K1 LCD Backlight Kit for a built K1? If so, I > have one available. $29.95 plus shipping. > Please let me know if you want it and I can compute the shipping cost - > USPS Priority Mail. > > 73, > Don W3FPR > > On 4/24/2019 10:24 AM, Denis Dimick wrote: > > I was wondering if anyone has a LCD LED upgrade they would be willing to > > part with? > > > > Denis > > KC6AUP > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 LED upgrade
Denis, Are you referring to the K1 LCD Backlight Kit for a built K1? If so, I have one available. $29.95 plus shipping. Please let me know if you want it and I can compute the shipping cost - USPS Priority Mail. 73, Don W3FPR On 4/24/2019 10:24 AM, Denis Dimick wrote: I was wondering if anyone has a LCD LED upgrade they would be willing to part with? Denis KC6AUP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 LED upgrade
I was wondering if anyone has a LCD LED upgrade they would be willing to part with? Denis KC6AUP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi Don, yes filter board is not inserted during these tests on page 45-46...(resistance and voltage tests) Thanks for hints, Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Don and Bert, Thanks for inputs from both. All measurement was done without the filter board. Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Bert, Multiply the RF Voltages listed for the RF Probe by 2.8 to get the peak to peak RF voltages observed with an oscilloscope. 73, Don W3FPR On 4/21/2019 9:13 PM, Bert wrote: HI Don and Petr, Thanks for the offer Petr but Don has already been kind enough to send me the Rev. D, 2000 K1 Manual. Thanks anyway! I find it quite difficult sometimes to troubleshoot and follow the schematics. Also doing signal tracing in the receiver and transmitter is quite subjective using only an RF probe. It would be better to have some RF values p-p so you could use a oscilloscope and at the same time see the signal. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Don and Petr, Forgot to mention that measurement was done with filter board plugged in. 5.7K Bert VE3NR On 4/21/2019 6:26 PM, Don Wilhelm wrote: Petr, Do you have the filter board plugged in when you read 5.6k ohms? Note in the Revision D manual, the filter board is NOT plugged in when making the resistance measurements on page 45. The filter board is not plugged in until you get to page 46. 73, Don W3FPR On 4/21/2019 5:57 PM, Petr, OK1RP/M0SIS wrote: Hi Don and Bert, as I noticed this evening > troubleshooting nor alignment parts are not same in the different Rev. of K1 manuals. Our sick K1 is also from 2000... RF board Rev. D, 2000 so I am using the manual Revision D, Dec 1, 2000. Unfortunately when I measured the resistances on page 45 (J7, J8 test points) I found the J7 pin 6 has 5.6kOhms to GND but table on page 45 says it should be >100k. What makes me confusing is that when I opened the later manual Revision F, January 24, 2002 I found that in the same table on page 45 the value of J7 pin 6 should be 5-7kOhms which souns ok compare to my measured value 5.6kOhms... ?! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
HI Don and Petr, Thanks for the offer Petr but Don has already been kind enough to send me the Rev. D, 2000 K1 Manual. Thanks anyway! I find it quite difficult sometimes to troubleshoot and follow the schematics. Also doing signal tracing in the receiver and transmitter is quite subjective using only an RF probe. It would be better to have some RF values p-p so you could use a oscilloscope and at the same time see the signal. This is an older radio so I don't expect Elecraft to come up with some new troubleshooting aids, but the K1 owners can share experiences and test results. I've just measured the resistance between J7-pin 6 to ground and it's 5.7K. Please keep me in the loop. Thanks to both of you. Comments from other k! owners are appreciated. Thanks! Bert VE3NR On 4/21/2019 5:57 PM, Petr, OK1RP/M0SIS wrote: Hi Don and Bert, as I noticed this evening > troubleshooting nor alignment parts are not same in the different Rev. of K1 manuals. Our sick K1 is also from 2000... RF board Rev. D, 2000 so I am using the manual Revision D, Dec 1, 2000. Unfortunately when I measured the resistances on page 45 (J7, J8 test points) I found the J7 pin 6 has 5.6kOhms to GND but table on page 45 says it should be >100k. What makes me confusing is that when I opened the later manual Revision F, January 24, 2002 I found that in the same table on page 45 the value of J7 pin 6 should be 5-7kOhms which souns ok compare to my measured value 5.6kOhms... ?! Don can you let me know some hints what it could means in that case please? The rest values are same in both tables and measured values are also corresponding to it. Bert I will send you the proper manual for your K1 (we have same Rev. ) > Revision D, Dec 1, 2000 by email. I got it from Don (many thanks Don!!) Thanks for help in advance. 73 Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Petr, Do you have the filter board plugged in when you read 5.6k ohms? Note in the Revision D manual, the filter board is NOT plugged in when making the resistance measurements on page 45. The filter board is not plugged in until you get to page 46. 73, Don W3FPR On 4/21/2019 5:57 PM, Petr, OK1RP/M0SIS wrote: Hi Don and Bert, as I noticed this evening > troubleshooting nor alignment parts are not same in the different Rev. of K1 manuals. Our sick K1 is also from 2000... RF board Rev. D, 2000 so I am using the manual Revision D, Dec 1, 2000. Unfortunately when I measured the resistances on page 45 (J7, J8 test points) I found the J7 pin 6 has 5.6kOhms to GND but table on page 45 says it should be >100k. What makes me confusing is that when I opened the later manual Revision F, January 24, 2002 I found that in the same table on page 45 the value of J7 pin 6 should be 5-7kOhms which souns ok compare to my measured value 5.6kOhms... ?! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Hi Don and Bert, as I noticed this evening > troubleshooting nor alignment parts are not same in the different Rev. of K1 manuals. Our sick K1 is also from 2000... RF board Rev. D, 2000 so I am using the manual Revision D, Dec 1, 2000. Unfortunately when I measured the resistances on page 45 (J7, J8 test points) I found the J7 pin 6 has 5.6kOhms to GND but table on page 45 says it should be >100k. What makes me confusing is that when I opened the later manual Revision F, January 24, 2002 I found that in the same table on page 45 the value of J7 pin 6 should be 5-7kOhms which souns ok compare to my measured value 5.6kOhms... ?! Don can you let me know some hints what it could means in that case please? The rest values are same in both tables and measured values are also corresponding to it. Bert I will send you the proper manual for your K1 (we have same Rev. ) > Revision D, Dec 1, 2000 by email. I got it from Don (many thanks Don!!) Thanks for help in advance. 73 Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K1] TX part sick
Don, many thanks. Manual is printed now. I am going to do it step by step accordingly during coming Easter holiday. I will report then after...:) 73 Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 manual revisions
Bert, The troubleshooting section is about the same - no problem. Do not rely on the board Rev level to be the same as the manual level. There is no Rev J K1 board. 73, Don W3FPR On 4/16/2019 9:03 PM, Bert wrote: Hi Don, Petr and all, I have a similar TX problem that I've been working on for a time. Reading your emails I realized that I'm using a K1 manual Rev. J. 2015. My K1 is from around 2000, Rev. D, and I'm now asking if the Rev. J of the manual is OK to use as reference and for troubleshooting? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 manual revisions
Hi Don, Petr and all, I have a similar TX problem that I've been working on for a time. Reading your emails I realized that I'm using a K1 manual Rev. J. 2015. My K1 is from around 2000, Rev. D, and I'm now asking if the Rev. J of the manual is OK to use as reference and for troubleshooting? I have been searching for K1 Rev. D manual but can't find it. Thanks! Bert VE3NR On 4/16/2019 10:55 AM, Don Wilhelm wrote: Petr. Turn that manual to Appendix E near the back. And on page 6 of that Appendix, you will find Transmitter Signal Tracing. Set up the K1 as instructed there, and no damage will be done. Then make the measurements in the order listed. You will need an RF probe. If you are using an oscilloscope (with a 10X probe), multiply the expected values by 2.8 to obtain the expected peak to peak RF voltage measurements. At the FIRST measurement that is significantly less than the expected value (expect as much as a 10% variation before saying it is significant) you have reached the output of the failing stage. Correct that stage and move onward to the next failure point. That is the procedure required to determine why it is not working. If the final is blown, replace it with the K1PAKIT from Elecraft. 73, Don W3FPR On 4/16/2019 9:17 AM, Petr, OK1RP/M0SIS wrote: Don, I checked other parts in TX section and it seems to be ok (refer to manual 2000 Rev. D). Just removed the 5th turn on secondary winding of T3. Is there something else strange or danger which I should check in order to avoid smoke during the test or even blowing the final please? Many thanks mate, Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K1] TX part sick
Petr. Turn that manual to Appendix E near the back. And on page 6 of that Appendix, you will find Transmitter Signal Tracing. Set up the K1 as instructed there, and no damage will be done. Then make the measurements in the order listed. You will need an RF probe. If you are using an oscilloscope (with a 10X probe), multiply the expected values by 2.8 to obtain the expected peak to peak RF voltage measurements. At the FIRST measurement that is significantly less than the expected value (expect as much as a 10% variation before saying it is significant) you have reached the output of the failing stage. Correct that stage and move onward to the next failure point. That is the procedure required to determine why it is not working. If the final is blown, replace it with the K1PAKIT from Elecraft. 73, Don W3FPR On 4/16/2019 9:17 AM, Petr, OK1RP/M0SIS wrote: Don, I checked other parts in TX section and it seems to be ok (refer to manual 2000 Rev. D). Just removed the 5th turn on secondary winding of T3. Is there something else strange or danger which I should check in order to avoid smoke during the test or even blowing the final please? Many thanks mate, Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K1] TX part sick
Don, I checked other parts in TX section and it seems to be ok (refer to manual 2000 Rev. D). Just removed the 5th turn on secondary winding of T3. Is there something else strange or danger which I should check in order to avoid smoke during the test or even blowing the final please? Many thanks mate, Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K1] TX part sick
Don, many thanks for hints. I will re-check all cores on RF board as same as on band module... We got this K1 in "repair needs" state from friend and the receiver sounds nice at the moment. So I would like to finish the repairing of TX path which burned to builder probably during alignment. I will let you know... at this moment I checked on RF board that T4 is wounded ok (not nice but correct) but T3 has more turns on secondary winding side. I will check all others to be sure there is no more mistakes. I do not know if the final transistor survived the last action > but we will see. MNI TNX, 73 Petr - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com G+:http://goo.gl/w3u2s9 G+: http://goo.gl/gP99xq -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K1] TX part sick
Petr, The number of turns on T4 is not likely to make much of a difference, but I recommend correcting it just the same. However, it is an indicator that there may be other toroids in that K1 with an extra turn on them, so check all of them. As for the transmit problem, it is only a guess for what may be wrong - the best answer if "anything" in the TX chain. The best way to approach that problem is to turn to the back of the manual and do the Transmit Signal Tracing to determine which stage is failing. It sounds like that K1 may have experience a lightning event (the burned capacitors are an indicator of that), so you may have multiple failures. Work them one at a time. Correct each one in turn and re-test after each correction. 73, Don W3FPR On 4/15/2019 3:44 AM, Petr, OK1RP/M0SIS wrote: Hi all, I am trying to repair the son's K1 where the TX seems to be sick. (receiver sounds hot and quite nice on both bands 40/20m) I found several C0G caps around the cores on the module board burned as same as K1 relay so I replaced them all after long time searching them on the market (EU). Now I am trying to check step by step according to manual the RF board (RF 2000 Rev.D) and I found that original builder (we did not built it) wound 5 turns of secondary T3 (green wire) instead of 4 described in manual. Should I remove the turn from T3 or is it possible to adjust the TX even with that mistake? I would like to avoid another burns... __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K1] TX part sick
Hi all, I am trying to repair the son's K1 where the TX seems to be sick. (receiver sounds hot and quite nice on both bands 40/20m) I found several C0G caps around the cores on the module board burned as same as K1 relay so I replaced them all after long time searching them on the market (EU). Now I am trying to check step by step according to manual the RF board (RF 2000 Rev.D) and I found that original builder (we did not built it) wound 5 turns of secondary T3 (green wire) instead of 4 described in manual. Should I remove the turn from T3 or is it possible to adjust the TX even with that mistake? I would like to avoid another burns... Many thanks, - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com G+:http://goo.gl/w3u2s9 G+: http://goo.gl/gP99xq -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 - Re-build filter board 40/15 to 40/20
>From >Elecraft.com<https://elecraft.com/products/k1b20_20m-band-module-for-k1-kfl1?variant=60525987275>K1B20_20M > Band Module >7.50<https://elecraft.com/products/k1b20_20m-band-module-for-k1-kfl1?variant=60525987275> Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net on behalf of Bert Sent: Thursday, March 28, 2019 11:25 PM To: Elecraft Reflector Subject: [Elecraft] K1 - Re-build filter board 40/15 to 40/20 I recently bought a K1 with a 40/15 filter board and want to change it to 40/20. Is there a kit available and if so what's the cost? Thanks! Bert VE3NR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 - Re-build filter board 40/15 to 40/20
I recently bought a K1 with a 40/15 filter board and want to change it to 40/20. Is there a kit available and if so what's the cost? Thanks! Bert VE3NR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 forward and reverse power indicator
As usual Don thanks. I just found the ATU manual on line so will review that next. de KG9H > On Mar 26, 2019, at 10:11 AM, Don Wilhelm wrote: > > Frank, > > An external SWR meter will only show you the antenna SWR which will not > change no matter what the ATU does. If you want to see that for any antenna > and band, you can use the ATU CLS setting which effectively bypasses the ATU > and shows you the antenna SWR. > > The important thing to the transmitter is the tuned SWR which you can see by > setting the ATU menu to rx.x which will give you the SWR at the input of the > ATU. > > See the KAT1 manual page 11 for full display capability. > Or just trust that the ATU will do its job. The SWR is displayed briefly at > the end of a TUNE cycle. > > 73, > Don W3FPR > > On 3/26/2019 8:38 AM, Frank Krozel wrote: >> So getting used to my new to me K1. >> I am lucky to have the ATU internally (and am looking for the NB board!) but >> have a question for the folks that have one of these. >> How do you see your reverse power in the field? Do you use an external SWR >> meter? is there a way to get some LEDs out that can show you that you have >> a 1:1 after the ATU does it’s job? >> Am I missing something in the set-up. >> The K1 sounds amazingly like my K2 in CW sound, love the radio. Mine has >> the 4 band module in it! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 forward and reverse power indicator
Frank, An external SWR meter will only show you the antenna SWR which will not change no matter what the ATU does. If you want to see that for any antenna and band, you can use the ATU CLS setting which effectively bypasses the ATU and shows you the antenna SWR. The important thing to the transmitter is the tuned SWR which you can see by setting the ATU menu to rx.x which will give you the SWR at the input of the ATU. See the KAT1 manual page 11 for full display capability. Or just trust that the ATU will do its job. The SWR is displayed briefly at the end of a TUNE cycle. 73, Don W3FPR On 3/26/2019 8:38 AM, Frank Krozel wrote: So getting used to my new to me K1. I am lucky to have the ATU internally (and am looking for the NB board!) but have a question for the folks that have one of these. How do you see your reverse power in the field? Do you use an external SWR meter? is there a way to get some LEDs out that can show you that you have a 1:1 after the ATU does it’s job? Am I missing something in the set-up. The K1 sounds amazingly like my K2 in CW sound, love the radio. Mine has the 4 band module in it! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 forward and reverse power indicator
So getting used to my new to me K1. I am lucky to have the ATU internally (and am looking for the NB board!) but have a question for the folks that have one of these. How do you see your reverse power in the field? Do you use an external SWR meter? is there a way to get some LEDs out that can show you that you have a 1:1 after the ATU does it’s job? Am I missing something in the set-up. The K1 sounds amazingly like my K2 in CW sound, love the radio. Mine has the 4 band module in it! de Frank KG9H __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 VFO problem - RESOLVED
Thanks, Don Wilhelm, your intuition was correct: I installed a 120pF capacitor at C12. When I replaced it with the correct 1200pF capacitor the frequency display worked! 73, Tom KQ7TJ Don Wilhelm wrote > Tom, > > Triple check C11 and C12 to be certain they are both 1200pF and that you > did not use the 120pF capacitor for one of them. > > Build yourself an RF Probe. The schematic for one is shown in the K1 > Manual Appendix on Troubleshooting. You can also purchase a kit from > Elecraft. > > 73, > Don W3FPR > > On 3/23/2019 10:03 PM, Tom Johnson wrote: > >> I am awaiting arrival of an RF Probe kit so I can do signal testing to >> attempt to trace down my problem. In the meantime I have looked over my >> board to the point it's invading my dreams, and I do not see any visible >> problem with the installation of any of the parts, with special attention >> to: Q9, Q1, R11, R12, L1, C2. >> >> I did see that I had not firmly seated U1, and corrected that: I was >> hoping >> that would do the trick, but it did not - still get the E42 code. >> >> It just seems to me that as everything tested out fine up until the >> installation of the L1 Toroid and the C2 capacitor (I'm using 68 pF disc >> for >> the 80 kHz range), that the issue should be centered there. I've >> confirmed >> the 33 turns on the toroid, and fiddled with the it's placement. I'm >> wondering if the winding direction makes a difference in the functioning >> of >> L1 - there is no picture of it in the manual, only a reference back to >> previous toroids, and I have wound it to match them. I've also confirmed >> continuity of the windings on L1. >> >> Lastly, I will reveal my testing ignorance here by mentioning my >> multimeter >> does measure frequency, but I am not sure if that applies in this case: >> ie, >> would that function as an RF Probe if I understood how to use it? >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 VFO problem
Sorry, Mike Morrow! The referred post was from David L DuPuy, March 04, 2013. I think you answered him and that's where I saw your name. I'm obviously not adept at using the reflector - I just discovered there were a string of replies to David I didn't read. 73 -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 VFO problem
Sorry, Mike! The referred post was from David L DuPuy, March 04, 2013. I think you answered him and that's where I saw your name. I'm obviously not adept at using the reflector - I just discovered there were a string of replies to David I didn't read. 73 -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 VFO problem
Sorry, Mike! I'm obviously not fully cognizant of how the reflector works. I thought the original message I was replying to would be included in the string. It was back from 2013. -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 VFO problem
Tom, Triple check C11 and C12 to be certain they are both 1200pF and that you did not use the 120pF capacitor for one of them. Build yourself an RF Probe. The schematic for one is shown in the K1 Manual Appendix on Troubleshooting. You can also purchase a kit from Elecraft. 73, Don W3FPR On 3/23/2019 10:03 PM, Tom Johnson wrote: I have exactly Mike Morrow's problem, and wonder if he ever got it resolved. Mike, if you are still around I'd like to hear what your resolution was. I am awaiting arrival of an RF Probe kit so I can do signal testing to attempt to trace down my problem. In the meantime I have looked over my board to the point it's invading my dreams, and I do not see any visible problem with the installation of any of the parts, with special attention to: Q9, Q1, R11, R12, L1, C2. I did see that I had not firmly seated U1, and corrected that: I was hoping that would do the trick, but it did not - still get the E42 code. It just seems to me that as everything tested out fine up until the installation of the L1 Toroid and the C2 capacitor (I'm using 68 pF disc for the 80 kHz range), that the issue should be centered there. I've confirmed the 33 turns on the toroid, and fiddled with the it's placement. I'm wondering if the winding direction makes a difference in the functioning of L1 - there is no picture of it in the manual, only a reference back to previous toroids, and I have wound it to match them. I've also confirmed continuity of the windings on L1. Lastly, I will reveal my testing ignorance here by mentioning my multimeter does measure frequency, but I am not sure if that applies in this case: ie, would that function as an RF Probe if I understood how to use it? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 VFO problem
Tom, You cite my name in your post, but I have absolutely no idea of what you refer. I built my K1 serial 175 in November 2000 and I experienced NO problems start to finish. Quote the posting to which you refer, including its date. Mike / KK5F -Original Message- >From: Tom Johnson >Sent: Mar 23, 2019 9:03 PM > >I have exactly Mike Morrow's problem, and wonder if he ever got it resolved. >Mike, if you are still around I'd like to hear what your resolution was. > >I am awaiting arrival of an RF Probe kit so I can do signal testing to >attempt to trace down my problem. In the meantime I have looked over my >board to the point it's invading my dreams, and I do not see any visible >problem with the installation of any of the parts, with special attention >to: Q9, Q1, R11, R12, L1, C2. > >I did see that I had not firmly seated U1, and corrected that: I was hoping >that would do the trick, but it did not - still get the E42 code. > >It just seems to me that as everything tested out fine up until the >installation of the L1 Toroid and the C2 capacitor (I'm using 68 pF disc for >the 80 kHz range), that the issue should be centered there. I've confirmed >the 33 turns on the toroid, and fiddled with the it's placement. I'm >wondering if the winding direction makes a difference in the functioning of >L1 - there is no picture of it in the manual, only a reference back to >previous toroids, and I have wound it to match them. I've also confirmed >continuity of the windings on L1. > >Lastly, I will reveal my testing ignorance here by mentioning my multimeter >does measure frequency, but I am not sure if that applies in this case: ie, >would that function as an RF Probe if I understood how to use it? > >I purchased my K1 18 years ago directly from Eric Schwartz when Elecraft was >still quite young and I was active in the Santa Cruz County Amateur Radio >Club. It is great to see how the company has grown and prospered! It wasn't >until settling into retirement that I mustered up the courage to tackle >building this project. > >If anyone has any theories on the K1 VFO failure issue other than those >already offered, please clue me in. > >73, >Tom Johnson >KQ7TJ (formerly KQ6DV) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 VFO problem
I have exactly Mike Morrow's problem, and wonder if he ever got it resolved. Mike, if you are still around I'd like to hear what your resolution was. I am awaiting arrival of an RF Probe kit so I can do signal testing to attempt to trace down my problem. In the meantime I have looked over my board to the point it's invading my dreams, and I do not see any visible problem with the installation of any of the parts, with special attention to: Q9, Q1, R11, R12, L1, C2. I did see that I had not firmly seated U1, and corrected that: I was hoping that would do the trick, but it did not - still get the E42 code. It just seems to me that as everything tested out fine up until the installation of the L1 Toroid and the C2 capacitor (I'm using 68 pF disc for the 80 kHz range), that the issue should be centered there. I've confirmed the 33 turns on the toroid, and fiddled with the it's placement. I'm wondering if the winding direction makes a difference in the functioning of L1 - there is no picture of it in the manual, only a reference back to previous toroids, and I have wound it to match them. I've also confirmed continuity of the windings on L1. Lastly, I will reveal my testing ignorance here by mentioning my multimeter does measure frequency, but I am not sure if that applies in this case: ie, would that function as an RF Probe if I understood how to use it? I purchased my K1 18 years ago directly from Eric Schwartz when Elecraft was still quite young and I was active in the Santa Cruz County Amateur Radio Club. It is great to see how the company has grown and prospered! It wasn't until settling into retirement that I mustered up the courage to tackle building this project. If anyone has any theories on the K1 VFO failure issue other than those already offered, please clue me in. 73, Tom Johnson KQ7TJ (formerly KQ6DV) -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 RF Board Prep for KAT1
Tom, As instructed in the KAT1 manual, refer to page 31 of your K1 manual and see if R39 is present. If not, add it. In either case, solder C76 across R39 - one capacitor lead to each resistor lead. Do the trace cut as shown in the diagram on page 8 - I can't describe it better than the pictures. Install R4 as shown in the diagram. You can make those RF Board changes at any time - except for removing the end of R36 - wait until you install the KAT1 for that part. 73, Don W3FPR On 3/20/2019 4:39 PM, Tom Johnson wrote: Before I go cutting into the RF Board (Revision D, year 2000) and soldering resistors and capacitors together, I want to clarify my understanding. 1) Does "Solder capacitor RF-C76 across RF-R39.." mean that I leave RF-R39 soldered to the board and additionally solder the leads of RF-C76 onto the leads of RF-R39 on each side? 2) I do CUT the trace the right of "DRV" and install RF-R4 between the trace's contact points? 3) I'm at this point only through Part I of the RF Board assembly and alignment - I have already built the 4 Band Filter Board (KFL1-4, Revision B), and KAT1 Revision C. I'm assuming I do NOT prep the RF Board and install the KAT1 board until I've completed the assembly and alignments of the RF and Filter Boards? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 RF Board Prep for KAT1
Before I go cutting into the RF Board (Revision D, year 2000) and soldering resistors and capacitors together, I want to clarify my understanding. 1) Does "Solder capacitor RF-C76 across RF-R39.." mean that I leave RF-R39 soldered to the board and additionally solder the leads of RF-C76 onto the leads of RF-R39 on each side? 2) I do CUT the trace the right of "DRV" and install RF-R4 between the trace's contact points? 3) I'm at this point only through Part I of the RF Board assembly and alignment - I have already built the 4 Band Filter Board (KFL1-4, Revision B), and KAT1 Revision C. I'm assuming I do NOT prep the RF Board and install the KAT1 board until I've completed the assembly and alignments of the RF and Filter Boards? 73 -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 Power Supply Melt Down
Chokes are not directional. Check your board for solder bridges and let us know what find. Since the board is mostly discreet parts, start looking at the battery connection and work your way into the circuitry. Is a part blackened, or very dark? 73, Bill K9YEQ From: elecraft-boun...@mailman.qth.net on behalf of Tom Johnson Sent: Thursday, March 14, 2019 8:34:47 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K1 Power Supply Melt Down I just completed my K1 RF Board through to the DC Voltage Checks section. I plugged into a 12 V Battery Pack and did not get any smoke from the board when I turned on S1. But I did not get a voltage reading from pin 15 on P1. I did get a reading between 3.8 - 4.2 on P1 pin 16. I went back to trying to get a reading from P1 pin 15, and then noticed my battery pack (8 1.5 V AA) was bubbling and melting down - very HOT! Does anyone have any clues as to what went wrong? My only guess is if RFC1 (33 uH RF choke) and RFC4 (100 uH RF choke) are directional, I may have them reversed: I thought like resistors they are not directional. 73 -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 Power Supply Melt Down
I just completed my K1 RF Board through to the DC Voltage Checks section. I plugged into a 12 V Battery Pack and did not get any smoke from the board when I turned on S1. But I did not get a voltage reading from pin 15 on P1. I did get a reading between 3.8 - 4.2 on P1 pin 16. I went back to trying to get a reading from P1 pin 15, and then noticed my battery pack (8 1.5 V AA) was bubbling and melting down - very HOT! Does anyone have any clues as to what went wrong? My only guess is if RFC1 (33 uH RF choke) and RFC4 (100 uH RF choke) are directional, I may have them reversed: I thought like resistors they are not directional. 73 -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1, U1 Socket
Thank you! On Tue, Feb 26, 2019, 12:53 PM Don Wilhelm wrote: > Tom, > > An 18 pin DIP socket is a generic item. Use it. > > 73, > Don W3FPR > > On 2/26/2019 3:02 PM, Tom Johnson wrote: > > I am building a Four Band Module K1. I got my parts a little mixed up > and > > installed the 18 Pin U1 socket from the 2 Band Module. The socket that > came > > with the 4 Band Module has "18" embossed below the top notch. The socket > > from the 2 Band Module likewise has "18" embossed below the notch, but > also > > has "A" embossed on the un-notched section. I'm assuming (hoping) this > is > > simply a generic socket and the parts are the same: correct? > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1, U1 Socket
Tom, An 18 pin DIP socket is a generic item. Use it. 73, Don W3FPR On 2/26/2019 3:02 PM, Tom Johnson wrote: I am building a Four Band Module K1. I got my parts a little mixed up and installed the 18 Pin U1 socket from the 2 Band Module. The socket that came with the 4 Band Module has "18" embossed below the top notch. The socket from the 2 Band Module likewise has "18" embossed below the notch, but also has "A" embossed on the un-notched section. I'm assuming (hoping) this is simply a generic socket and the parts are the same: correct? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1, U1 Socket
I am building a Four Band Module K1. I got my parts a little mixed up and installed the 18 Pin U1 socket from the 2 Band Module. The socket that came with the 4 Band Module has "18" embossed below the top notch. The socket from the 2 Band Module likewise has "18" embossed below the notch, but also has "A" embossed on the un-notched section. I'm assuming (hoping) this is simply a generic socket and the parts are the same: correct? Tom Johnson KQ7TJ -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft K1 4-Band For Sale
Hello, I am assisting the family of a SK selling their ham radio gear. The estate has a mint condition Elecraft K1 (sn#01739) with the KFL1-4 four-band module (40,30,20,15m) which includes the KAT1 Antenna Tuner and the NB Noise Blanker. The circuit boards all look to be professionally assembled and the transceiver is fully operational. Pictures available on request. $395 OBO plus insured shipping from 40356. 73 Bill N4LG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [K1] keying output mod possible?
Is there a way to simply mod a K1 to provide a keying output for a KXPA100 or KPA500 amp? I built every option into my four-band K1 if that makes a difference. Thanks and 73 Eric WD6DBM Sent from Yahoo Mail on Android __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 noise blanker assembly question
Pete, Rev Cr should be the same as Rev C. If you have the two extra capacitors, install them as indicated in the instructions. The Rev D board had thru-holes for those capacitors, but I don't think the Rev D board was ever released. I have never seen one. 73, Don W3FPR On 1/3/2019 10:23 PM, Pete Spotts wrote: Hi folks, This may be an trivia question for Super Don. ;-) In the sequence of Revs to the KBN1 board, does Rev C include Rev Cr, or is Cr its own board revision? My board is Rev Cr, and toward the end of assembly there are a couple of capacitors that for Rev C require special installation. I don't want to misread either the instructions or the Rev number and muck things up. Oh yes, Happy New Year to all Elecrafters, whether on this list server or not! With best regards, Pete __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 noise blanker assembly question
Hi folks, This may be an trivia question for Super Don. ;-) In the sequence of Revs to the KBN1 board, does Rev C include Rev Cr, or is Cr its own board revision? My board is Rev Cr, and toward the end of assembly there are a couple of capacitors that for Rev C require special installation. I don't want to misread either the instructions or the Rev number and muck things up. Oh yes, Happy New Year to all Elecrafters, whether on this list server or not! With best regards, Pete -- Peter N. Spotts -- NM5PS ARRL Public Information Coordinator, New Mexico Section http://www.nm5ps.net Email: nm...@arrl.net | Skype: pspotts AMSAT #40612 | CalQRP #67 | G-QRP #13202 | NAQCC #2446 | NEQRP #714 Polar Bear #348 | QCWA #34679 | QRP-ARCI #4174 | SKCC #4853S __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 80m Band Kit
Does anyone happen to have one of these that could benefit from being re-homed? 73 - Al, K2ZN Sent via mobile __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 for sale
I have a nice K1 for sale. If interested, drop me an email for details. Carl Yaffey K8NU Recording studio. cyaffeyno_s...@gmail.com 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.com http://www.bluesswing.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K1 4 bander issue
Fred, If 40 meters works, then 30 should also. They share the same low pass filter and the inductors of the bandpass filter and Pre-Mixer bandpass filter. One possibility is that the crystal for 30 meters has gone bad. You can check for that with an oscilloscope or RF Probe at P1 pin 4. You should have at least 200mV peak to peak - which is 70mV RMS as seen on the RF probe. If you have oscillation at P1 pin 4, then the most common cause is that 30 meters has not been properly aligned. Initially set C5, C6, CE and CF to their mid-point then feed a strong signal into the antenna jack with the K1 tuned to the frequency of the signal - you may have to hunt around that frequency for the signal. Then adjust the 30 meter trimmer capacitors to peak that signal. After peaking in receive, set the OUT parameter to 1.5 watts and peak those same trimmers on transmit. If the power goes over 4 watts, stop and reset OUT and then continue. Once you have peaked 30 meters, you will have to peak the filters on 40 meters. 73, Don W3FPR On 8/4/2018 8:10 AM, Fred VE3FAL wrote: I just acquired a K1 4 bander from a ham in Ottawa. It has 40,30,20 and 15 meters in it. All bands operate and function as they should except for 30 meters. Have done some searches on this possible issue but nothing solid as of yet. Anyone have a starting point where I might look to see or find the issue. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1 4 bander issue
I just acquired a K1 4 bander from a ham in Ottawa. It has 40,30,20 and 15 meters in it. All bands operate and function as they should except for 30 meters. Have done some searches on this possible issue but nothing solid as of yet. Anyone have a starting point where I might look to see or find the issue. Cheers Fred VE3FAL Sent from my iPhone Fred VE3FAL/CIW649 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K1/K2 extra parts
Everything is gone. Sold in first 5 minutes of posting last night. I’m still getting queries about specific items. Guy, they’re all gone! Wish I had more. Mike, W4UM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
