[Elecraft] Spare parts for K2
Does somebody have any suggestion of a list of parts considered a must in my spare parts package for my K2 I would like to store at home ??? For sure Q7 (2SC1969) is in my kit !!! === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] K1EL cw keyboard
This was easy and fun to build, very reasonably priced, good documentation, semi-cult following, small enough to fit inside the rig (if you want to add a hole!), works well in a rat's nest format as well. I have mine connected with my j-38 and a switching line from my laptop when I use N1MM software for the contests. Anyone ever build, and use the XTAL matching board K1EL has? I have dreams of homebrewing my own, should I find some free time... cheers, julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] Spare parts for K2
Thanks Don for your suggestion, This is a good starting point I'm agree that I don't need a lot of components, but a few basic and versatile to be commonly use in many other projects. And one other thing, all parts seems to be very common anyway in any good electronic store, or at least you will get it in a couple of days... 73 Le 04-06-25, à 11:11, Don Wilhelm a écrit : Jean-Francois, I would say to save your money - unless you want to accumulate some parts for other homebrew projects. Parts in the K2 rarely fail (almost never) unless they are abused in some way. The design point for the components is conservative and little stress is placed on them in normal usage. I have never had a component fail in a K2 in 5 years unless I 'slipped' with the probe - and if that happens, it is hard to say just what component will be zapped - it depends on where the probe was placed. If you insist, I would suggest buying some 2N7000 MOSFETs because they have very low gate current and can be used if you want to 'steal' a signal from inside the K2 without creating undue extra loading. They will handle up to 200 ma of drain current too, so they can drive a heavy load if required. Other good choices are 2N NPN transistors and 2N2906 PNP transistors which will give a good start for any junkbox. An assortment of 1/4 watt resistors and a stock of capacitors is always a good thing to have on hand. I keep every value resistor in the 10% value scale in stock and lots of .001, .01 and .1 capacitors as well as assorted smaller values. You can usually parallel capacitors to obtain the in-between values when needed. What you add to your parts selection does depend on the kind of circuits you are likely to build, but you can't go wrong with the above suggestions for a starting point. 73, Don W3FPR Life is what happens when you are making other plans - Original Message - Does somebody have any suggestion of a list of parts considered a must in my spare parts package for my K2 I would like to store at home ??? For sure Q7 (2SC1969) is in my kit !!! === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
[Elecraft] K9DI/KF9HL Field Day 2004 Effort
-- Hi Gang, Wayne K9DI es LD Patriot here. I just wanted to drop a note to the list asking you to keep an ear out for the combined K9DI/KF9HL FD 2004 effort. We'll be using a combo of Antique Kenwoods (Tom's TS520, my TS820s, with Ol' Betsy, my TS520, as backup) and my 2 elecrafts if we do CW we'll probably use the elecrafts due to the filtering. Good Luck to all on FD 2004!! 73 de Wayne K9DI ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
Re: [Elecraft] Spare parts for K2
Yes you're right maybe someday I'll buy another K2 I'm planning anyway to buy another one that will stay in my shack with the PA 100W I'm really enjoying this rig... It's a good thing also to have problem sometime make me learn a lot !!! ;-) But no too often... Le 04-06-25, à 11:44, Ron D'Eau Claire a écrit : FB about getting a new Q7, Jean-François! As for spares... Over the years, I have always kept a spare final or finals around ever since my 'final' was a 6L6 or 807 vacuum tube. If something was going to blow due to carelessness or the strain of regular use, it'd be the final. In 1977 - more than a quarter century ago - I built a Heath HW-8 transceiver. The other day I was digging around in my semiconductor stock and came across an envelope marked Spare HW-8 Final. The message is that it's been over a quarter century since I've blown a final. Once you have the rig up and running, just about the only thing that's going to fail is something that you break by having an accident - like the probe slipping (You made me wince with that story. I suspect that most of us has done that at least once!). Still, if you're going to have something quit in 'normal' operation, it's most likely one of the 'final' transistors. If you stock one, stock a set. And it's quite unlikely that they will die. The only real danger is if you don't mount the heat sink correctly or run the rig at too high a power for too long. Keep in mind the 10 watt rating for the K2 and the 100 watt rating for the K2/100 are for CW or SSB, not digital modes. CW/SSB has a lower 'duty cycle' since the key is up or you aren't constantly talking so the average power is well below 10 or 100 watts. Another op I know lost a bypass cap recently. It shorted, which took out an IC relay driver. It really screwed up the relay band-switching and it took him some head-scratching and good detective work to realize what had happened. All he could see was that the power out was lousy on some bands. Still that's VERY rare. He asked me for ideas and a shorted bypass never occurred to me. My ol K2/100 (S/N 1289) has been working without a hitch for over 3 years, in spite of being torn down dozens of times to make mods or do testing of new mods. So if you want to avoid being off the air unexpectedly at any time, maybe the best spare is a spare K2... Or perhaps a KX1 G. 73, Ron AC7AC -Original Message- Does somebody have any suggestion of a list of parts considered a must in my spare parts package for my K2 I would like to store at home ??? For sure Q7 (2SC1969) is in my kit !!! === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] ICOM/MicroHams FD effort
Hi, Keep an ear out for N7OS (main) and N7IH (GOTA) for Field Day. We will be running on ICOM-sponsored 7800s and my K2. Good luck to everyone in the contest and also lots of good weather and good food. 73, Andreas, KU7T ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Spare parts for K2
Another op I know lost a bypass cap recently. It shorted, which took out an IC relay driver. It really screwed up the relay band-switching and it took him some head-scratching and good detective work to realize what had happened. All he could see was that the power out was lousy on some bands. Still that's VERY rare. He asked me for ideas and a shorted bypass never occurred to me. This happened to me too so it can't be that rare! The other spare I've needed was a headphone socket. They take mini-jacks but if, like me you use an adapter to a full size jack, they break. Mine took about a year. Obviously I now only use mini jacks. I would guess this isn't that rare either because it is a spare item on the Elecraft site. In general I very much agree that things electronic don't wear out. Andrew MIKAZ k2# 3679 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] ICOM/MicroHams FD effort
Andreas (KU7T) wrote: Keep an ear out for N7OS (main) and N7IH (GOTA) for Field Day. We will be running on ICOM-sponsored 7800s and my K2. Good luck to everyone in the contest and also lots of good weather and good food. As long as we're advertising.. G, I might as well get me 2-pence worth in as well... Please listen for N0SS (and WB0TPN, GOTA) on all modes. Will be running my K2/100 on the CW station, all bands. Hope everyone has a fun, but most of all, SAFE Field Day. 73, Tom N0SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RE: Toriod winding questions (Sorry!)
Hi, I have now carefully wound and installed the first few Toroids for my K2. Vertical Toriods - As I did not want the wire crossing back over the windings to the mounting holes. I have a bare part of the Toroid (i.e no wire) where the core sits on the board. Not sure of the percentage, could be 20% bare. Horizontal Toriods - As I did not want the wire running parallel to the windings and back to the mounting holes. I have a bare part of the toroid (i.e no wire) where the core sits on the board. Not sure of the percentage, could be 20% bare. I know the manual says 85% as a target. Am I worrying too much? Is it ok / desirable to have the wire running parallel to the windings, in order to get fuller spacing around the core? if so, are they secure with the extra loose wire? I have read the toroid page and looked at photos but I have missed this mounting detail! Thanks! Regards Nicolas WWW.M1HOG.COM --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.709 / Virus Database: 465 - Release Date: 22/06/2004 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: Spare parts for K2
I managed to blow a set of K2 finals. One of the mounting screws rusted and the rust shorted one collector to ground (high resistance) so one transistor opened and the other was down to about 3 watts max. I dredged back in memory to a First Telephone License test (when they were still available) to the rules for number of spare tubes required for radio stations. I don't remember the exact numbers but one spare was required for 1-4 tubes, 2 spares for 5-8 tubes (some such numbers). So I went through the K2 schematic and ordered 3 sets of finals, 2 drivers, and some of just about everything ( from RF Parts, Mouser, Newark, Digi-key etc.). After replacing the finals I have yet to need a single spare (about 2 years). There is some moral here connected with Murphy's law or some corollary thereof. I suppose in time there won't be any through-hole parts available and if I am still around I won't be able to see well enough or solder well enough to fix anything anyway. Don't worry, be happy. Allen ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RE: Toriod winding questions (Sorry!)
Nicolas Pike wrote: Am I worrying too much? Yes. The only toroid that is in any way critical is T5, regarding which I remember very vaguely that I had to squeeze or separate the turns a bit to get the VCO voltage in spec. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Output power problem
Start checking at each part back toward where you do have 13 vdc. Suddenly, you'll have the bad connection 'bracketed' - no 13 v on one side and 13 v present on the other side. You may have a badly tinned toroid lead. They can be hard to spot at times (the lead will look soldered, but there's actually still a thin layer of enamel between the wire and the solder in the hole. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of JEAN-FRANCOIS MENARD Sent: Friday, June 25, 2004 11:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Output power problem Finally I changed PA transistors Q7 Q8, because I shorten Q7 between Base and Collector by accident with my probe... no big deal... Now, tuning at 2W I have again these readings: Both Q7 Q8 B : 0.6 VDC C : 0.0 VDC !!! (should be around 13.3 VDC E : 0.0 VDC There is also the readings I have with driver Q5 when tuning at 2W Q5 E : 0.6 VDC B : 1.2 VDC C : 13.4 VDC (should be 12.4, but... ) Any idea ??? === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] A ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Output power problem
I put my board under a magnifier glass, and I found was you have suspected T3 Why T3... because I unsoldered the wrong place when first removing the bad Q7... removed a leg of T3 and resoldered it not correctly Ok, now I've replaced only Q7... waiting to receive Q8 I now have 13.x VDC on the collector of Q7 and Q8 when tuning. Voltage on Q5 did not change. Q6 still the same when hitting TUNE B : 1.1 VDC C : 13.45 VDC E : 2.1 VDC ??? should be arounf 0.4 VDC We must consider than I have Q8 missing at his moment, only a new Q7 is there, but should emitter of Q6 be ok ??? Change Q6 for a new one and it's the same values. Le 04-06-25, à 15:31, Dan Barker a écrit : You sure it's not PTTL on T3? There's not a whole lot of components between +12 and the collectorsg. As to Q5, you don't mention your supply voltage, but again, there's not a whole lot of components between +12 and the collector. I'd say 13.4 is fine. Dan / WG4S / K2 #2456 ps: PTTL = Poorly Tinned Toroid Leads snip Both Q7 Q8 B : 0.6 VDC C : 0.0 VDC !!! (should be around 13.3 VDC E : 0.0 VDC There is also the readings I have with driver Q5 when tuning at 2W Q5 E : 0.6 VDC B : 1.2 VDC C : 13.4 VDC (should be 12.4, but... ) Any idea ??? === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Amateur Radio Club of Sherbrooke, Quebec, Canada Web site: http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === === Jean-François Ménard / VA2VYZ [EMAIL PROTECTED] Club d'Astronomie Amateur de Sherbrooke Club Radio Amateur de l'Estrie Mon site web personnel : http://homepage.mac.com/jfmenard === ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Eurasian ECN on 26jun2004
Well its time for another Eurasian ECN and the times and frequencies are the same, hopefully the North American FD will not be an issue. times and freqs are 20m 14.045 at 1600z 40m 7.025 at 1800z If the exact freq is in use look up 5 or down 5...hope to hear you guys and good luck. Also want to wish all the Elecrafters good luck during field day and if you hear me on the air give me a shout. -- 73 ditdit, Doc YI9RVT/KE4RVT Al Kut, Iraq ***All emails and attachments scanned by Norton Antivirus with current definitions*** N33.29 E45.45 FPQRP #85 KX1 S/N 0337 QRP-L #2201 (sk)K1 S/N 0113 ARS #1696 K2 S/N 2768 FIST'S #10652 FT897 QRPARCI #11746 www.qrparci.org www.arsqrp.com www.fists.org Sometimes a little brain damage can help. (George Carlin) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100 DC connector WARNING ALERT
Hi Steve: At 11:04 PM 6/25/04, Steve Jackson wrote: At Field Day, if you will be using your K2 with the KPA100 ... note that the radio's high-current DC port is 180 degrees reversed from the national ARES standard: I believe you're mistaken pal. The KPA100 APP connector match IDENTICALLY the examples shown at http://www.ocraces.org/powerpole.html and http://home.comcast.net/~buck0/app.htm. The link at http://www.westmountainradio.com/pdf/QSTrr.pdf showed nothing useful. The illustration on page 41 of the rev. A KPA100 manual matches exactly the illustration at www.ocraces.org... and the illustrations on pages 29 38 of the rev. A manual match IF you recognize that you're looking at the UNDER of the PC board instead of the top... well, at least it's the bottom SIDE when it's installed INSIDE the K2 and had been turned upside down for that installation... thus making the actual TOP of the PC board the under side... Don't go changing ANYTHING until you've DOUBLE-CHECKED yourself again. 73, Tom HammondN0SS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100 DC connector WARNING ALERT
Steve and all, I don't usually disagree with you Steve, but I looked at my APP cables that DO work FB with my KPA100 and they look just like the pictures in all your references. Yes, if one looks at the the KPA100 input, it may look like it is reversed, but it DOES mate properly with the cables that are configured just like the 'standard'. As an added note -- my Rigrunner connectors look like they are reversed too - but they have to be that way to mate with the cables pictured in the references. The pictures show the cable and not the mating connector in the housing. A word to the wise is still in order - before connecting ANY equipment to someone else's cables, be certain the polarity is correct!!! Especially on Field Day, but on every other day as well. 73, Don W3FPR Life is what happens when you are making other plans - Original Message - At Field Day, if you will be using your K2 with the KPA100 ... note that the radio's high-current DC port is 180 degrees reversed from the national ARES standard: http://www.ocraces.org/powerpole.html http://www.westmountainradio.com/pdf/QSTrr.pdf http://home.comcast.net/~buck0/app.htm If other Field Day attendees attempt to connect you rig to a standard-configured PowerPole fitting, they will be connecting with reverse polarity, and this will blow the fuse. Hopefully there IS a fuse ... Otherwise, quite a lot of smoke will come out of many places. Now that I realize the problem, I will be re-doing my KPA100 connector with a wire pigtail instead of the PC mount, to make the rear panel fitting the correct polarity. The rear panel is also silk-screened backwards ( + and - ) from the standard but I will make a label of some sort to cover that up. Good luck and be careful out there. Don't let others use your K2/KPA100 rig unless they also use YOUR power wire. If they try to hook it up to an ARES standard club power block, uh-oh. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
