[Elecraft] OT - Looking for an audio-range VCO
I'll try to keep this short (again). I'm in the process of trying to design a circuit for use by mobile HF operators to assist them with remotely tuning their antennas from the driver's seat. The circuit I _was_ going to use requires a couple LM-358 Dual OpAmps and a single 74LS629 dual VCO. Unfortunately, the 74LS629 is becoming very difficult to find in small quantities. DigiKey wants me to buy 50 of 'em at $2+ each, and Mouser doesn't carry them at all. Fortunately, I CAN find the LM-358 at DigiKey, but I usually don't have enough of an order to make their $25 minimum (without a handling fee). Anyway, I'm looking for a possible substitution for the 74LS629 Dual VCO IC. Either another IC or possible a discrete-component circuit for the VCO which will have to run in the audible hearing range. I'd prefer to use an IC VCO if possible however. If anyone might have some suggestions for a possible substitute for the 74LS629, or a suitable discrete-component VCO, I'd love to hear from you (DIRECT to my e-mail, please). Thanks, 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 For Sale
Hi Folks, I'm selling my K2 #3641 with the KBT2 battery option. $500.00 USD which includes shipping to U.S or Canada. Rig works great ... but has been collecting dust so needs a proper home. Paypal payment preferred. Please contact me off list with any questions. -- Chris VA7CAB ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX1 with HF Packer Amp
Some discussion lately on using the K2 to drive the HF Packer Amp. I bought the amp kit some time ago and have not yet built it. My main reason for buying was to use it to beef up a KX1 signal. Has anyone had any experience driving the Packer Amp with a KX1? My KX1 puts out 4 watts on 40 meters and 3.5 watts on 20 meters. Should have plenty of drive for the Amp. Any comments and help will be very much appreciated. Paul Webb, K5HKX Clute, TX PAUL WEBB [EMAIL PROTECTED] ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: New Amplifiers ...
400W PEP (26dBW) 73! BKA (TA2RX) What are you all talking about with 400/800.. Peak or key down. I have had probably a half dozen amplifiers in the last 50 years., 2 of which were home brew... They would put out 500-600 watts key down. That was always enough for me!! g I think I could be satisfied with 400 watts Key down. Paul Gates, KD3JF Elecraft Kits: K1 #0231 KX1 #1186 XG1: Signal Generator - Original Message From: Bekir Kemal Ataman [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, February 05, 2006 10:03:49 AM Subject: Re: [Elecraft] Re: New Amplifiers ... I think the main problem would be commercial. Although 400 watts would make a noticeable difference, most hams who are in the market for an amplifier want at least 800w. Anything above 400W is illegal in this part of the world. 73! BKA (TA2RX) -- Bekir Kemal Ataman ArchiMac BBS Sysop Webmaster http://www.archimac.org/ ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K-2 #5266 A-OK
Part II Alignment and Test for K-2 #5266 went A-OK...all within specs...that sure is a good feeling! Taking it slow and easy but continue to be impressed with the top quality of this product! H Cary, K4TM Lynchburg, Va ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS: unbuilt KIO2
Doing some closet cleaning and found a KIO2 that I got when I bought a used K2. It is unbuilt and still in the plastic bag. Don't think I will ever connect my K2 to a computer so off to a new home it shall go. Will ship continental US for $65. Email direct. 73 de w1mt Mike __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft hexkey
I have an odd request. Any one who has such a key ,could you please tell me the thickness of the base. Please reply directly. Thank youGil K8EAG ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KPA100 (or K2) Power control
I'm having a difficulty with the power control in a freshly built KPA100. When I set the power to 50W then key up (TUNE), I get appx 25W (indicated on the K2 and external wattmeter). If I barely move the POWER control on the K2 output will jump to 50W indicated on both the K2 and wattmeter. Each TUNE cycle is the same. I'm not sure if the problem is in the KPA100 or my K2, as the K2 is not very 'stable' either. With the KPA100 disabled I set the K2 to say 5W, then enter TUNE, I get appx 7W output (indicated on K2 and wattmeter), minor touch on the POWER control will drop the power to 4W, exit TUNE and it says 5W. It behaves this way with the KPA100 set OFF or with no PA PS or completely disconnected. Confused? Well, I am! The bare bones K2 overshoots it power setting, with the KPA100 it under achieves. :-) All of my testing has been done with a known good dummy load. The 'problem' is not band sensitive. How 'stable' should the K2 POWER settings be - if I set it to 5W should I be seeing 5W indicated on the K2? I thought that under a good load condition the firmware would 'match' the requested power and actual power within a few tenths or so. I figure the K2 needs to be fixed before I fiddle more with the KPA100 - yes? Now the hard questions... what, where, why is the sky blue? (wanted to have one easy question!). Thanks all 73, Bill N2BC K2 #5290 ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1 for sale, 4 band with autotuner and noise blanker
This is not mine; I'm selling it for J. Frank Brumbaugh, W4LJD, a retired engineer in his mid 80s, getting out of ham radio. (He used to provide a lot of material for my column in the QRP Quarterly.) After I agreed to sell it for him and he shipped it to me I played around with it on and off for a few weeks, fixed a problem (intermittent RIT caused by a bad solder joint), and now it's time to advertise it. I don't have an outdoor antenna at present, but did play around with it on my HP8640B/USM-323 signal generator and seems to receive well on all bands. It puts out at least 5 watts on all 4 bands, maybe more if you tweak the circuits. It covers at least the first 60 KHz of 40, 30, 20 and 15 meters (going up to about 67 KHz over the lower ends). Although there is an optional backlight now available for the display, this one does not have it. K1 #00422 Internal antenna tuner 4 band module for 40, 30, 20, 15 Noise blanker Homebrew power supply built into same type of Elecraft case as the K1 (will supply a JPG photo if you want to see it) Has some sort of add-on, flip-down, single leg stand on the front, which does not appear to be a current Elecraft product. No complete manual is included, although that can be downloaded from the Elecraft web site. (He did send along his documentation book which includes some marked up pages from the manual and sheets from the add-ons.) There is also some sort of homebrew audio filter module mounted inside the case but not hooked up and not tried. (I checked all 3 K1 filter settings and they seem to work well.) Noted in passing--it would appear that this came from a smoking environment, although I did wash off the cases which seems to have helped some. Asking $425 plus shipping (will be sent to US addresses only). Any questions on the rig will be gladly entertained. 73 and queue our pea DE WA8MCQ ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] test
have seen nothing on the list all day. John WA8KNE ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] JARC Capitol City Hamfest
Just had the the Capitol City Hamfest sponsored by JARC in Jackson, MS and it was a success, IMHO. I set up an Elecraft table and demonstrated my K2 and KPA100/KAT100 in an EC2. I ran the Power Point presentaion on my laptop and had a notebook of pictures printed from the website of PA3CEV. Response was very good and a number of other Elecrafters came by to visit and help with testimonials about Elecraft. I did not hear even one negative comment. I think there will be some sales resulting from the efforts. It was lots of fun and it sure is nice to have gear that is so well thought of and accepted by the masses. 73, Mark Baugh W5EZY Grenada MS __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Grounding mic connector body on K2 front panel board
Somewhere I saw a recommended mod to ground the front panel mic connector body. I am unable to locate this now. Can someone point me in the proper direction? Thanks and 73, Charlie, W0YG.. ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Wireless peripherals
Thanks to all concerning this issue. Looks like I can go ahead with my plans. 73, Mark Baugh W5EZY Grenada MS __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] How could I forget Radiofest
We often lose sight of those closest to us and I sure did! Radiofest held in Seaside, CA- just a few short miles from Elecraft is held February 25th from 7am to 2pm. Elecraft will be there in full force with products to view, touch and sell! Come on by and enjoy a beautiful day in the Monetery Bay. For details see: http://www.radiofest.org/ ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KX1 with HF Packer Amp
That may be TOO much drive for the HF PAcker! I drive one on 160-20 meters with a K1 and it takes about 1.5-2.0 watts to make the HF Packer deliver 35 watts out. If you can't control the power output of the KX1, then you may have to change the values of the attenuator network in the input path of the HF Packer on the RF board therein. I have had fantastic results from my HF Packer. Only complaint is it needs a bit of modification of the hang time. Needs to be much shorter! OK for SSB but no good for CW contest/net activity. Ok for casual QSO's. Hang time once keyed is much too long for CW. 73, Sandy W5TVW - Original Message - From: Paul Webb [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 06, 2006 12:04 PM Subject: [Elecraft] KX1 with HF Packer Amp | Some discussion lately on using the K2 to drive the HF Packer Amp. I | bought the amp kit some time ago and have not yet built it. My main reason | for buying was to use it to beef up a KX1 signal. | | Has anyone had any experience driving the Packer Amp with a KX1? My KX1 | puts out 4 watts on 40 meters and 3.5 watts on 20 meters. Should have | plenty of drive for the Amp. | | Any comments and help will be very much appreciated. | | Paul Webb, K5HKX | Clute, TX | | | PAUL WEBB | [EMAIL PROTECTED] | | | ___ | 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/elecraft | | Help: http://mailman.qth.net/subscribers.htm | Elecraft web page: http://www.elecraft.com | | | | -- | No virus found in this incoming message. | Checked by AVG Free Edition. | Version: 7.1.375 / Virus Database: 267.15.2/252 - Release Date: 2/6/2006 | | ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] How could I forget Radiofest
On Feb 6, 2006, at 6:03 PM, Lisa Jones wrote: We often lose sight of those closest to us and I sure did! Radiofest held in Seaside, CA- just a few short miles from Elecraft is held February 25th from 7am to 2pm. Elecraft will be there in full force with products to view, touch and sell! Come on by and enjoy a beautiful day in the Monetery Bay. I know that real estate around there is untouchable, but I didn't realize that Monterey Bay had been renamed :^) 73, Bob N7XY ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] VCO alignment problem
I've been cruising through the assembly manual with no trouble at all until I got to the VCO alignment. I can't get the measured voltage at R30 down below 6.35 volts. I've installed the Rework Eliminator headers and I've set the extended vfo range menu setting D19 to 'Y'. I've double-checked the number of windings on T5 (16 red and 4 green windings), and C72 and L30 read the right value. Here's what I measure. 035002.51V 040006.35V 070002.46V 073003.77V 12.77V 101503.27V 140002.43V 150004.03V 180002.23V 182003.32V 210002.19V 214502.50V 248003.99V 250004.35V 280003.30V 288004.14V The board is assembled with an fine (.018in) solder. The label says it is lead, tin, antimony, and silver with a rosin or zinc cloride core. Does anyone have any ideas what the problem might be? Thanks in advance. Rich - KE1EV ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: KPA100 (or K2) Power control
Earlier post: I'm having a difficulty with the power control in a freshly built KPA100. snip - remove incriminating evidence Thanks to Philip WD8QWR I have learned my K2 and KPA100 are working as they should. Now to re-do the FWD and REV adjustments I have been twiddling for two days. Sorry for the noise... 73, Bill N2BC ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FYBO 2006 VA3SIE VE3WMB Outing
Hi, Michael VE3WMB and Martin VA3SIE set up a vertical and an inverted vee in Britannia park in the City of Ottawa. It was 38F and we had some wind-chill, but it didn't snow and we even had little snatches of sunlight. We operated casually for just 3 hours of the contest. Here is our story: http://www.sunim.plus.com/contests/fybo2006/ What a fun contest!! 72 es 73 de Martin VA3SIE. ___ NEW Yahoo! Cars - sell your car and browse thousands of new and used cars online! http://uk.cars.yahoo.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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KPA100 (or K2) Power control
Read the manual, Bill. When you push Tune, the power out is limited to 20 watts. You can bypass this feature by pushing Tune and Display at the same time. Read the manual, Bill. best wishes, dave (Read the manual, Bill), w1euy On Feb 6, 2006, at 6:42 PM, Bill Coleman N2BC wrote: I'm having a difficulty with the power control in a freshly built KPA100. When I set the power to 50W then key up (TUNE), I get appx 25W (indicated on the K2 and external wattmeter). If I barely move the POWER control on the K2 output will jump to 50W indicated on both the K2 and wattmeter. Each TUNE cycle is the same. I'm not sure if the problem is in the KPA100 or my K2, as the K2 is not very 'stable' either. With the KPA100 disabled I set the K2 to say 5W, then enter TUNE, I get appx 7W output (indicated on K2 and wattmeter), minor touch on the POWER control will drop the power to 4W, exit TUNE and it says 5W. It behaves this way with the KPA100 set OFF or with no PA PS or completely disconnected. Confused? Well, I am! The bare bones K2 overshoots it power setting, with the KPA100 it under achieves. :-) All of my testing has been done with a known good dummy load. The 'problem' is not band sensitive. How 'stable' should the K2 POWER settings be - if I set it to 5W should I be seeing 5W indicated on the K2? I thought that under a good load condition the firmware would 'match' the requested power and actual power within a few tenths or so. I figure the K2 needs to be fixed before I fiddle more with the KPA100 - yes? Now the hard questions... what, where, why is the sky blue? (wanted to have one easy question!). Thanks all 73, Bill N2BC K2 #5290 ___ 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/elecraft Help: 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Grounding mic connector body on K2 front panel board
The Heil web site and dig around, it's dere. Dick, NJ9K -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Charlie, W0YG Sent: Monday, February 06, 2006 12:20 To: Elecraft Reflector Subject: [Elecraft] Grounding mic connector body on K2 front panel board Somewhere I saw a recommended mod to ground the front panel mic connector body. I am unable to locate this now. Can someone point me in the proper direction? Thanks and 73, Charlie, W0YG.. ___ 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/elecraft Help: 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Same Useful Accessories ... Now Easier to Find on the Web
Ken and I are in the process of moving our website to http://unpcbs.com Along with this move we now have several new and simpler email addresses. See our About Us webpage for details. --- - - - --- For those of you contemplating building your first (or your next) K2, we are now shipping all of our new Stock K2 - PCB Upgrade Parts Kits. In conjunction with our Rework Eliminator(TM) option bypass headers and the instructions in our new Rework Eliminators(TM) Companion Guide, these newest kits will enable you to build a Plug Play Ready stock K2. What this means is that after it's assembled and aligned, you can add any internal option to your K2 by removing just the top cover and then plugging in the option! Other than changing the jumpers on the mic configuration header (on the front panel board) or perhaps adding some new mod, we foresee no reason why you would ever need to disassemble your K2. --- - - - --- I look forward to meeting those of you who can attend the hamfest in Orlando this weekend. (I'll be at the Elecraft booth Saturday until about 1:00 PM.) 73, Gary, KI4GGX K2 #4067 Rework Eliminator, Rework Eliminators, and unpcbs are trademarks of Ken Kaplan (WB2ART) and Gary Hvizdak (KI4GGX). ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Anyone hear of an available K2?
Elecrafters: I had been intending to build a K2. Unfortunately, it looks like my 1983 vintage Argosy is reaching the end of its life sooner than I expected, and alas, I am too busy with work responsibilities to build a rig right now. Anyway, I'm in the market for an already built K2. One without the SSB function is preferred. However, prebuilt K2s are so rare that I'm not picky about the configuration. If anyone has word of one for sale please let me know. BTW, I am aware of the one currently listed on eBay, and I have that one on my watch list. 73, Steve Kercel AA4AK ___ 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/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
