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1. Re: [Amps] High Voltage wire (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Wed, 2 Dec 2009 04:37:34 +0000; I've always used the solid polyethylene center conductor from coax. Never had a breakdown/arc-over. 73, Charlie, N0TT _______________________________________________ Amps mailing list Amps@contesting; /archives//html/Amps/2009-12/msg00027.html (8,215 bytes)
2. Re: [Amps] Bird 43 Meter Repair Query (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Sun, 4 Oct 2009 16:55:16 +0000; I've used clear silicone - sparingly. It remains flexible to allow the meter case and glass to expand differently with temperature changes. There's also a "flowable" silicone for windshield repair th; /archives//html/Amps/2009-10/msg00061.html (7,746 bytes)
3. Re: [Amps] 73 Magazine (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Fri, 25 Sep 2009 23:09:32 +0000; Yeah, I know what you mean Carl. The ARRL's "QST View" is IMHO is clumsy to use. The printed output from their CD's has been satisfactory to me however. FWIW, in the Dec 1968 QST, page 60, there was; /archives//html/Amps/2009-09/msg00323.html (13,982 bytes)
4. Re: [Amps] RF Reed Relays for QSK (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Fri, 12 Jun 2009 03:36:29 +0100; FWIW Gents, I received my relays I ordered from Andy and I'm very happy with them. Good delivery from DL to Missouri too. 73, Charlie, N0TT _______________________________________________ Amps mailin; /archives//html/Amps/2009-06/msg00056.html (7,814 bytes)
5. Re: [Amps] HV switch-mode power supply (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Thu, 21 May 2009 05:13:47 +0100; Larry, the best that I could figure is Magnetics core number ZJ-44920-TC available from this company: www.mtldistribution.com Send them an email to get a quote. They were in the $8.40 price range at; /archives//html/Amps/2009-05/msg00144.html (7,793 bytes)
6. Re: [Amps] Electrical Grade Shellac (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Thu, 5 Mar 2009 03:02:27 +0000; Bravo Dave...way to go on that! I would imagine so...don't know for sure, but either shellac or varnish would be acceptable. The idea is to keep the laminations separated to avoid eddy current losse; /archives//html/Amps/2009-03/msg00128.html (9,374 bytes)
7. Re: [Amps] turns = henries question (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Sat, 21 Feb 2009 23:57:35 +0000; Gary, To get 60uh on a .676" dia form you'll need a close-wound coil, 45 tpi, about 3" long. That per my ARRL LCF/Coil-winding Calculator. 73, Charlie, N0TT __________________________________________; /archives//html/Amps/2009-02/msg00633.html (9,061 bytes)
8. Re: [Amps] equipment faceplates-stencil etc (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Thu, 19 Feb 2009 17:33:45 +0000; FWIW, I have laser-printed lettering on the panel side of transparencies, then glued them on a painted panel with clear, photo-mount spray. The same technique *might* work with 0.010 lexan sheeting (; /archives//html/Amps/2009-02/msg00567.html (8,857 bytes)
9. Re: [Amps] pc board material (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Mon, 16 Feb 2009 17:14:48 +0000; Far Circuits might have it...saw some at Dayton in their tent. I wish I woulda bought it!! 73, Charlie, N0TT _______________________________________________ Amps mailing list Amps@contesting.com http; /archives//html/Amps/2009-02/msg00499.html (7,928 bytes)
10. Re: [Amps] SB-220 troubles (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Fri, 13 Feb 2009 17:22:56 +0000; Heh...heh...just wait until you're an OF! Just a brief lapse of awareness while you're messing around in there and you're "grounded". None of us want to read about you in the SK column! Charlie, N0T; /archives//html/Amps/2009-02/msg00427.html (8,507 bytes)
11. Re: [Amps] 3CX800 filament voltage (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Mon, 9 Feb 2009 16:08:48 +0000; You could you connect a small filament xfmr (with a appropriate rating) in series with the primary of the "main" filament xfmr to buck or boost its primary voltage. 73, Charlie, N0TT (http://music.ao; /archives//html/Amps/2009-02/msg00236.html (9,992 bytes)
12. Re: [Amps] Regulated DC heater (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Mon, 26 Jan 2009 17:05:47 +0000; D'Oh! You're right Bob...RMS=DC "heating" value...Shoulda thought about it some more before posting. Thanks, Charlie 73 Bob, WA2CKY Hi Gents, Just for some future info here....If I use regulated DC t; /archives//html/Amps/2009-01/msg00301.html (7,956 bytes)
13. Re: [Amps] Regulated DC heater (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Mon, 26 Jan 2009 16:09:38 +0000; Hi Gents, Just for some future info here....If I use regulated DC to power the filaments on any tube, and let's say the required voltage is 5 volts AC, shouldn't (or couldn't) the DC value be 5 x .70; /archives//html/Amps/2009-01/msg00297.html (9,022 bytes)
14. Re: [Amps] High voltage wire (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Fri, 26 Dec 2008 03:13:31 +0000; Some years ago one of the "standard" SO239 coax connectors would short out the HV supply at the Amp. Then I switched to the HN series of connectors with RG-8 solid....never a problem after that, but; /archives//html/Amps/2008-12/msg00336.html (8,194 bytes)
15. Re: [Amps] HV wire (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Mon, 22 Dec 2008 16:42:59 +0000; I've always used the inner conductor of coax for that...never had a problem. 73, Charlie, N0TT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.conte; /archives//html/Amps/2008-12/msg00285.html (7,324 bytes)
16. Re: [Amps] Vacuum relay adjustment? (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Thu, 11 Sep 2008 01:33:00 +0000; If the adjustment doesn't work as intended, you might try to reverse the coil connections....could be that the armature has become magnetized over time. Charlie, N0TT ________________________________; /archives//html/Amps/2008-09/msg00110.html (8,633 bytes)
17. Re: [Amps] 3-500Z glitch resistor (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Mon, 8 Sep 2008 23:13:32 +0000; FWIW, and right or wrong, I've used ordinary 1 or 2 Amp 3AG fuses in the HV lead to an amplifier to protect the tubes. Of course one would NOT use an ordinary chassis mount fuse holder!! I placed th; /archives//html/Amps/2008-09/msg00055.html (8,577 bytes)
18. Re: [Amps] 3-500Z glitch resistor (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Mon, 8 Sep 2008 23:17:47 +0000; It could be that the wirewound is better because it has inductance, enough to at least give a good protection circuit time to operate....just a thought. Charlie, N0TT _______________________________; /archives//html/Amps/2008-09/msg00054.html (8,315 bytes)
19. Re: [Amps] Silicone Rubber Sheets (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Thu, 28 Aug 2008 15:41:35 +0000; My old Alpha 86 cooling chimneys are 1/8". But the thickness doesn't really matter for cooling as long as it forms the required shape. The thicker stuff might allow gluing/fastening it end-to-end ins; /archives//html/Amps/2008-08/msg00148.html (9,830 bytes)
20. Re: [Amps] Silver Strap (score: 1): Author: Missouri Guy <n0tt1@juno.com>; Date: Tue, 8 Jul 2008 22:40:34 +0000; If nothing else, there's a rub-on silver-plating powder available. Also, I remember seeing an article in QST on how to do your own real silver plating. I like the silver plating too, but to retard co; /archives//html/Amps/2008-07/msg00071.html (11,203 bytes)

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