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1. [Amps] hENRY 2K-3 FAN NOISE (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 28 Aug 2002 21:47:50 +0008; Hi, Why all the fuss? There has been lots of talk about noisy fans... etc. I can see the requirement for quiet fans/blowers and for remote mounting if one is in the broadcasting business. But why not; /archives//html/Amps/2002-08/msg00319.html (7,925 bytes)
2. [Amps] hv resistors (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Thu, 23 May 2002 08:26:22 -0700; HV divider-makers; Caddock MG735 30 megohms, 3.5W 1% 10kV part no 160-CAD-30M $1.75 Caddock MG780 80 megohms, 7.5W 1% 15kV part no 160-CAD-80M $2.00 from Johnson Shop Products, P.O. Box 2843, Cuperti; /archives//html/Amps/2002-05/msg00385.html (7,863 bytes)
3. [Amps] Glitch resistors (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 6 Mar 2002 20:13:02 +0008; Hi all, This is all about a typo...(a simple error of omission) I'm sure that what Rich meant in his original post was "if the glitch resistor does NOT pass the test, discard it and..." (My addition; /archives//html/Amps/2002-03/msg00124.html (8,938 bytes)
4. [Amps] SB220 Question... fuses (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 20 Mar 2002 14:29:57 -0800; It has been written: Rich replied: I've told this story before, but maybe it's time to repeat it. When I worked at Fairchild in the early 60's, we tested many of the common fuse types to see which wo; /archives//html/Amps/2002-03/msg00442.html (8,043 bytes)
5. [AMPS] Shunt regulated high voltage psu (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Tue, 29 Jan 2002 14:40:15 -0800; < snip > No. That's a SMALL dynamic resistance. You want delta V to be small with a given delta I. Dynamic Resistance = (delta V)/(delta I) Good voltage regulation is "constant V as the ... current v; /archives//html/Amps/2002-01/msg00286.html (9,688 bytes)
6. [AMPS] Shunt regulated high voltage psu (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 30 Jan 2002 08:38:02 -0800; When I was doing my 4cx800a/Dentron MLA2500 conversion, I got some plate curves from Svetlana in Russia. I decided that -20ma was the most "wrong way" screen current I'd ever get for a single '800a..; /archives//html/Amps/2002-01/msg00311.html (10,781 bytes)
7. [AMPS] slight corrections to previous post re 4cx800a (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 30 Jan 2002 09:46:55 -0800; Hi again, For the sake of accuracy and clarity: please change "diesigned" to "designed" (I do know how to spell. I don't always type perfectly. I should know to read/edit before clicking the "Send" b; /archives//html/Amps/2002-01/msg00317.html (6,957 bytes)
8. [AMPS] Shunt regulated high voltage psu (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 30 Jan 2002 12:08:07 -0800; Hi, Rich wrote... This reminded me of a 4-65A amp (class C) that I built for 40m many years ago. After installing a bigger fan (cooler is gooder) I hooked everything back up to the power supply, whic; /archives//html/Amps/2002-01/msg00331.html (10,180 bytes)
9. [AMPS] 8877 bias curve? (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Fri, 2 Nov 2001 08:22:37 -0800; Another thing to remember that any published curves and numbers are probably averages. The bias "curve" is really a big, fat, wide "smear." Different tubes of the same type might have bias voltages t; /archives//html/Amps/2001-11/msg00018.html (8,996 bytes)
10. [AMPS] Re: Darwinian selection: was : Noises in electrolytic capacitors (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 3 Oct 2001 09:32:59 -0700; Hi, Tom, then Rich wrote... 100 Joules, ill-timed with respect to the heart's intrinsic excitation and unfortunately applied such that the right (or wrong, actually) amount goes through the heart, is; /archives//html/Amps/2001-10/msg00043.html (10,872 bytes)
11. [AMPS] Tetrode poor IMD performance (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 22 Aug 2001 10:09:35 -0700; < snip > This is called nonlinearity. The audio, maybe(?), but neighbors up and down the band might not appreciate the signal. 73, George T. Daughters, K6GT -- FAQ on WWW: http://www.contesting.com/F; /archives//html/Amps/2001-08/msg00290.html (8,271 bytes)
12. [AMPS] Label Stock for Laser Printers (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Mon, 16 Jul 2001 14:26:21 -0700; The query was posed... Rich responded: This works well. The standard warning about super-gluing yourself to the panel bears repeating. Also you can go to an artist's supply place and get a spray "fix; /archives//html/Amps/2001-07/msg00181.html (8,544 bytes)
13. [AMPS] New 3cx800a7 and 4cx1600b Svetlanas (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Fri, 20 Jul 2001 08:03:05 -0700; I assume this is a typographical error, and should be 3cx1500a7. There's no way a triode (8877)is a tetrode (4cx1500a7). I saw a couple of the first 4cx1600's sent over here, (they were a Russian num; /archives//html/Amps/2001-07/msg00239.html (10,121 bytes)
14. [AMPS] Re: Antenna Tuner (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Wed, 20 Jun 2001 09:51:55 -0700; That is beautiful! It has the air of "classic" radio equipment about it. It brought to mind Marconi's equipment on display on Cape Cod. 73, George T. Daughters, K6GT -- FAQ on WWW: http://www.contest; /archives//html/Amps/2001-06/msg00191.html (9,768 bytes)
15. [AMPS] Re: YC156 heater/cathode question (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Tue, 8 May 2001 08:10:28 -0700; If the cathode is biased negative with respect to the grid, then major cathode, grid, and anode current will flow... Better bias the cathode positive with respect to the grid! (Or the grid negative w; /archives//html/Amps/2001-05/msg00119.html (7,540 bytes)
16. [AMPS] henry 2k-4 hv breaker (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Thu, 1 Mar 2001 13:22:50 -0800; Mike asked... < snip > Have you answered your own question? (Or, rather, has the manual answered your question?) I don't have ANY experience with the Henry 2K-4, but it sounds like it might be workin; /archives//html/Amps/2001-03/msg00019.html (7,830 bytes)
17. [AMPS] Xray levels (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Mon, 5 Mar 2001 10:09:57 -0800; < snip, snip > < more snipping > All very good advice; but I'd like to add that the main thing to be aware of is the ENERGY of the x-rays... and that's quite simply a function of the accelerating pot; /archives//html/Amps/2001-03/msg00046.html (9,927 bytes)
18. [AMPS] Amps Power Conservation Measure (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Thu, 1 Feb 2001 09:25:29 -0800; Hi all, At first that sounds like a good idea, but then I recalled that the first dit or dah has a greatly INCREASED power spike on it... so that doesn't work! Maybe we could get ICOM (and others!) s; /archives//html/Amps/2001-02/msg00024.html (7,810 bytes)
19. [AMPS] 3cv1500 (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Tue, 20 Feb 2001 08:21:13 -0800; Hi, Now that the server is back (THANKS!!) I'll repost my request, which I thought had gone to the big 50 ohm resistor in the sky. I'm in need of data on the Eimac 3cv1500 used in the old Alpha 70v.; /archives//html/Amps/2001-02/msg00269.html (6,766 bytes)
20. [AMPS] 77SX (score: 1): Author: gdaught6@leland.stanford.edu (George T. Daughters); Date: Tue, 2 Jan 2001 14:17:18 -0800; I sincerely doubt that it's 3 phase! How would you do that with one "hot" line?? 73, George T. Daughters, K6GT -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Admin; /archives//html/Amps/2001-01/msg00071.html (8,625 bytes)

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