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21. [Amps] OT-small gauge magnet wire source? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 28 Aug 2011 19:44:11 -0500; Hello all, A friend of mine is working on a project and he needs small gauge magnet wire in 32-40 gauge sizes. He only needs 10-20 feet of each size and every place he's found the minimum order quant; /archives//html/Amps/2011-08/msg00212.html (7,768 bytes)
22. Re: [Amps] OT-small gauge magnet wire source? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 28 Aug 2011 19:51:06 -0500; Thanks Jim....I made a suggestion to my friend to salvage wire from small hobby type motors but the relay suggestion is probably a better one. Hopefully someone may have a source. -- 73, Gary K9GS Ch; /archives//html/Amps/2011-08/msg00214.html (9,177 bytes)
23. Re: [Amps] OT-small gauge magnet wire source? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Mon, 29 Aug 2011 19:03:50 -0500; Thank you Todd, and everyone else. Many great suggestions. This should keep my friend busy looking for a long time. -- 73, Gary K9GS Check out K9NS on the web: http://www.k9ns.com Greater Milwaukee D; /archives//html/Amps/2011-08/msg00219.html (9,361 bytes)
24. Re: [Amps] How can I find when my Alpha was built (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sat, 24 Sep 2011 22:06:19 -0500; Hi Cam, Go to this link: http://www.rfconcepts.com/Legacy-Products About half way down the page is a .pdf that you can download called "Legacy Amplifier Production Dates". It's not very detailed but; /archives//html/Amps/2011-09/msg00180.html (8,098 bytes)
25. [Amps] Ameritron Front Panel Material? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Wed, 09 Nov 2011 07:49:47 -0600; Can someone that owns an Ameritron amp confirm if the front panel is steel or aluminum? -- 73, Gary K9GS Check out K9NS on the web: http://www.k9ns.com Greater Milwaukee DX Association: http://www.gm; /archives//html/Amps/2011-11/msg00036.html (6,821 bytes)
26. Re: [Amps] Ameritron Front Panel Material? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Wed, 09 Nov 2011 20:19:00 -0600; Thanks for all the replies. Yes, I realize that if the panel was steel a magnet would stick to it. I don't own an Ameritron amp or I would have done that and not had to ask the list. -- 73, Gary K9GS; /archives//html/Amps/2011-11/msg00046.html (7,969 bytes)
27. [Amps] Person looking for 3CPX800's? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 29 Jan 2012 13:20:00 -0600; This just came from the VHF reflector: For sale 2 new Eimac 3CPX800A7 tubes Again listing for n1jbh@comcast.net Pictures upon request ...... $1000.00 for both. 73 Peter,KB1HY -- Submissions:vhf@w6yx.; /archives//html/Amps/2012-01/msg00267.html (7,241 bytes)
28. [Amps] New set of tubes? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Wed, 08 Feb 2012 20:48:25 -0600; I just received a new set of spare tubes today for my amp, Alpha 8100 with 2X GU74B/4CX800A tubes. Is the conventional wisdom to install the new tubes and power up the amp for a period of time before; /archives//html/Amps/2012-02/msg00064.html (6,835 bytes)
29. [Amps] Hi Pot Test Procedure? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 12 Feb 2012 19:09:56 -0600; What is the proper procedure for Hi-Pot testing a tetrode, in this case a GU74B? Apply potential between anode and any other element? I did see one mention of applying potential between the anode and; /archives//html/Amps/2012-02/msg00116.html (7,465 bytes)
30. Re: [Amps] Hi Pot Test Procedure? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Mon, 13 Feb 2012 18:29:19 -0600; Thanks for the reply Brad. I took the tubes into the office today. The hi-pot tester there only went to 5kV. It was so fast to test I ended up going between the anode and each tube element. No proble; /archives//html/Amps/2012-02/msg00130.html (10,581 bytes)
31. Re: [Amps] Buying Stolen Tubes? (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Tue, 13 Mar 2012 18:31:07 -0500; I remember hearing, I think it was a TV news story, several years ago that said 60% is stolen. Seems a little high to me but it may be in some categories. It would be an interesting thing to Google.; /archives//html/Amps/2012-03/msg00157.html (10,952 bytes)
32. Re: [Amps] Guidelines.....toroids for tank ckts (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 25 Mar 2012 13:45:41 -0500; I wonder what the permeability is of a jelly filled donut? Did the bagel toast or just get stale? -- 73, Gary K9GS Greater Milwaukee DX Association: http://www.gmdxa.org Society of Midwest Contesters; /archives//html/Amps/2012-03/msg00270.html (9,244 bytes)
33. [Amps] Alpha 8100/GU74B Tetrode question (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 13 May 2012 14:10:04 -0500; Hello all, I have an Alpha 8100 with a pair of GU74B/4CX-800 Tetrodes. I recently had a problem occur with the amp going into a fault condition as soon as any drive was applied. Through some help fro; /archives//html/Amps/2012-05/msg00278.html (7,151 bytes)
34. Re: [Amps] Alpha 8100/GU74B Tetrode question (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 13 May 2012 22:38:35 -0500; Hello Leigh, I did the same calculation that you did and reached the same conclusions. I don't have the amp up and running yet as I didn't have a replacement part. I'm hoping I have something suitabl; /archives//html/Amps/2012-05/msg00280.html (10,027 bytes)
35. Re: [Amps] Alpha 8100/GU74B Tetrode question (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sat, 26 May 2012 17:06:20 -0500; Finally had some time today after Dayton and getting caught up with other stuff. I replaced the series screen resistor and the amp looks like it's working normally. I need to do some additional check; /archives//html/Amps/2012-05/msg00343.html (10,274 bytes)
36. Re: [Amps] Dedicated RF (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sat, 28 Jul 2012 16:58:51 -0500; I agree with Rob....yet another 2x 3CX-800 amp. Big deal. What would be the point of buying one of these when I could buy an Alpha 87, TenTec, etc.... Put some real tubes in it.... -- 73, Gary K9GS G; /archives//html/Amps/2012-07/msg00344.html (9,759 bytes)
37. Re: [Amps] Dedicated RF (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 29 Jul 2012 15:13:27 -0500; There are several commercial VHF/UHF single band amps already on the market that use the Freescale LDMOS parts. Only one HF amp that I am aware of...so far. -- 73, Gary K9GS Greater Milwaukee DX Asso; /archives//html/Amps/2012-07/msg00360.html (9,385 bytes)
38. Re: [Amps] Dedicated RF (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 29 Jul 2012 18:41:51 -0500; Well, my point is that I'd be happy to see some experimentation/development in SS amps, instead of another commercial amp using hideously expensive tubes. Let's face it, the days of the 3CX800 are nu; /archives//html/Amps/2012-07/msg00369.html (12,383 bytes)
39. Re: [Amps] Dedicated RF (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Sun, 29 Jul 2012 19:57:27 -0500; Exactly Carl....there are still plenty of 3CX800 tubes floating around and pulls are fine for existing amateur equipment. Heck....if I came across a good deal on an amp that used 3CX800s I might be t; /archives//html/Amps/2012-07/msg00381.html (15,883 bytes)
40. Re: [Amps] 3CX1500A vs el cheapo GS-35B (score: 1): Author: Gary K9GS <garyk9gs@wi.rr.com>; Date: Wed, 01 Aug 2012 16:15:59 -0500; That's not how it works Bill. This is a medical device we're talking about and it's use and repair is regulated by the FDA and maybe state law.. Not something "anyone" could swap out. I'm not intimat; /archives//html/Amps/2012-08/msg00022.html (9,939 bytes)

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