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301. [AMPS] In diodes we trust (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 29 Jul 1999 12:32:45 EDT; On Thu, 29 Jul 1999 08:32:43 -0400 "Tom Rauch" <w8ji@contesting.com> writes: On Thu, 29 Jul 1999 07:30:04 -0700 Rich Measures <measures@vc.net> writes: Good Morning (at least here in California) Pete; /archives//html/Amps/1999-07/msg00618.html (12,336 bytes)
302. [AMPS] SSB PEP Measurement (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 30 Jul 1999 11:51:16 EDT; Assuming, of course, that the transmitter in question is sufficiently linear at the power level in question to accurately reproduce the two-tone waveform. 73, Marv WC6W * ____________________________; /archives//html/Amps/1999-07/msg00643.html (7,291 bytes)
303. [AMPS] technical question (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 10 Jun 1999 14:50:18 EDT; voltage in tube a is with SSB. Hi Peter, If you were thinking of National AN-8, that example was probably somewhere around the 25 watt level. I suppose that was an early "Class H" amplifier... though; /archives//html/Amps/1999-06/msg00348.html (11,170 bytes)
304. [AMPS] amp (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 13 Jun 1999 18:48:57 EDT; have, xfmr Hi Larry, Wellllll, if you wanted to invest more time and effort on the power supply than the amplifier, you could build a switcher. A "gravitational constant" of 100 watts per pound is ea; /archives//html/Amps/1999-06/msg00415.html (8,339 bytes)
305. [AMPS] 3-500Z filament voltage (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 13 Jun 1999 18:48:57 EDT; Collins values, Hi Monty, The 30S-1 metered the heater voltage on the primary side of the transformer. Likely Collins calibrated the meter by measuring the resulting filament voltage at the pins... T; /archives//html/Amps/1999-06/msg00416.html (8,024 bytes)
306. [AMPS] SPS elaboration (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 14 Jun 1999 13:34:19 EDT; Happy Monday everyone! I suppose I should clarify just a bit what I meant by the .1 uF output capacitor... WARNING... most of the items in the following discussion are NOT isolated from the AC line!; /archives//html/Amps/1999-06/msg00438.html (9,915 bytes)
307. [AMPS] 4CX1000A ALC (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 15 Jun 1999 13:25:48 EDT; limit when the it Hi Peter, I think I sent you the overall description of my 4CX1500B rediculotron some time back. But just to elaborate a bit on that design, I have a floating grid supply (sourced f; /archives//html/Amps/1999-06/msg00456.html (10,656 bytes)
308. [AMPS] SPS elaboration (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 15 Jun 1999 13:25:48 EDT; This do comes loop of loop There are actually two loops. The first loop is around the PFC and that has a rather low frequency response... on the order of 10 Hz. This provides approximately 5% regulat; /archives//html/Amps/1999-06/msg00457.html (11,488 bytes)
309. [AMPS] Re: Oh, those SMPS designs (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 15 Jun 1999 15:15:54 EDT; On Tue, 15 Jun 99 10:34:15 MDT "dhaupt" <dhaupt@mail.bewellnet.com> writes: Hi Dave, How much power are you looking to run? A single transformer should suffice for up to 3KW. If you need more, I thin; /archives//html/Amps/1999-06/msg00461.html (11,963 bytes)
310. [AMPS] SMPS a la QEX (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 16 Jun 1999 12:46:20 EDT; On Tue, 15 Jun 1999 22:09:24 +0200 "Carsten Groen" <cgroen@image.dk> writes: Hi Carsten, I haven't seen that QEX article... Just curious... which controller chip and Power FET's does it use? at what; /archives//html/Amps/1999-06/msg00476.html (7,872 bytes)
311. [AMPS] Obtuse questions (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Thu, 24 Jun 1999 14:31:59 EDT; Good Morning everyone, I'm trying to reconcile some design issues with an unusual 4-400 amplifier I've been kicking around the past couple weeks. Does anyone: 1. Have a feeling for what the value of; /archives//html/Amps/1999-06/msg00658.html (7,908 bytes)
312. [AMPS] Class C 4-400A (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 25 Jun 1999 12:07:55 EDT; Happy Friday everybody, My last curious concept of the week. A mix of the old and the new. Just for old times sake, say I had a vintage tetrode, 4-400A to be specific, and I wanted to operate it in s; /archives//html/Amps/1999-06/msg00703.html (7,794 bytes)
313. [AMPS] Obtuse questions (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Fri, 25 Jun 1999 12:07:55 EDT; On Thu, 24 Jun 1999 13:54:01 -0700 Rich Measures <measures@vc.net> writes: Hi Rich, I was planning to mount the cap vertically in an 8" hi case and motor drive it, so I wasn't concerned with a shaft; /archives//html/Amps/1999-06/msg00704.html (8,821 bytes)
314. [AMPS] Arcing in air vs. arcing in a vacuum (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 17 May 1999 21:04:36 EDT; Jon & the group, The breakdown potential of a gaseous dielectric (air included) is directly proportional to the gas pressure EXCEPT at high (>100 PSI) and very low pressures (approaching tube or vacu; /archives//html/Amps/1999-05/msg00204.html (9,910 bytes)
315. [AMPS] HV Safety (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Tue, 06 Apr 1999 10:58:02 EDT; Hi all, I just thought I'd share an idea from my own homebrew amplifier experience along this line. In my own amp and separate power supply which is built in the bottom of a rack cabinet I have plast; /archives//html/Amps/1999-04/msg00100.html (7,967 bytes)
316. [AMPS] TRW PT6702 or PT6747? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 18 Apr 1999 13:45:11 EDT; Happy Sunday Morning (at least where I am...) Does anyone happen to know the specifications for either the TRW PT6702 or PT6747 RF power transistors? I surmise that they are late 60's vintage VHF par; /archives//html/Amps/1999-04/msg00338.html (7,293 bytes)
317. [AMPS] Re: full break in (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sun, 18 Apr 1999 13:45:11 EDT; "High I Hi Roy, Since that HR article DOESN'T tell the full story... neither PIN diode part numbers nor the control circuitry nor any details on the RFC's... I wonder if you could fill in some of th; /archives//html/Amps/1999-04/msg00339.html (8,002 bytes)
318. [AMPS] 3-500Z Datasheet (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Wed, 03 Mar 1999 11:58:40 EST; QST 3-500Z, I sent this URL direct to Warren and then I noted that VIc and perhaps some others would also be interested. You can download a copy of the 3-500Z data sheet in PDF format at: http://cata; /archives//html/Amps/1999-03/msg00068.html (7,349 bytes)
319. [AMPS] Eimac 4CX600J comments? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Mon, 08 Feb 1999 19:19:41 EST; diss. Hi Scott, I've always thought that they were kinda cute myself... ever since I inherited a couple of them (actually the 4CX600JA's with the larger radiator) but, they do have there own peculiar; /archives//html/Amps/1999-02/msg00254.html (8,749 bytes)
320. [AMPS] What (modern) tube to use? (score: 1): Author: wc6w@juno.com (Radio WC6W); Date: Sat, 20 Feb 1999 13:00:50 EST; commercial If I was building a new amplifier, which I kinda am tinkering with... I'd take a long hard look at transistors...which is what I'm doing. That leads to a whole different set of challenges; /archives//html/Amps/1999-02/msg00535.html (12,816 bytes)

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