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1. [Amps] re:- Heath Kit SB220 Linear Amp - Unbuilt (score: 1): Author: wa5jci@flash.net (WA5JCI); Date: Thu, 8 Aug 2002 11:17:29 -0500; Wow, if the boxes were unopened, the price would be astronomical, hee, hee. es 73 de Pete WA5JCI 6 Mtr VUCC#361/780 Confirmed--2 Mtr VUCC#346/190 Confirmed 6 Mtr WAS#490--6 Mtr DXCC#404/118 Confirmed; /archives//html/Amps/2002-08/msg00000.html (6,532 bytes)
2. [Amps] Input impedance needed (score: 1): Author: wa5jci@flash.net (WA5JCI); Date: Wed, 3 Jul 2002 13:52:21 -0500; Greetings, What's the GG cathode input impedance for the 8877 and the 3CX800A7? Can't find my notes. Tks, es 73 de Pete WA5JCI EM21jv 6 Mtr VUCC#361/784 Confirmed--2 Mtr VUCC#346/190 Confirmed 6 Mtr; /archives//html/Amps/2002-07/msg00054.html (6,487 bytes)
3. [Amps] Bias Zener Diodes In Parallel ? (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Thu, 18 Jul 2002 22:32:50 -0500; How about the old trick of putting a power resistor in parallel with the zener to take some of the "heat." WA5JCI; /archives//html/Amps/2002-07/msg00296.html (11,924 bytes)
4. [Amps] Driving Impedance (score: 1): Author: wa5jci@flash.net (WA5JCI); Date: Tue, 11 Jun 2002 19:08:33 -0500; Greetings, What's the input impedance for a GG 4CX800A? Thanks, es 73 de Pete WA5JCI EM21jv 6 Mtr VUCC#361/782 Confirmed--2 Mtr VUCC#346/190 Confirmed 6 Mtr WAS#490--6 Mtr DXCC#404/119 Confirmed Char; /archives//html/Amps/2002-06/msg00072.html (6,651 bytes)
5. [Amps] CB amps on e-Bay (score: 1): Author: wa5jci@flash.net (WA5JCI); Date: Thu, 18 Apr 2002 08:00:37 -0500; most I just worked, at 1908Z, FO3BM on 6 meters from East Texas, doesn't get better than that! es 73 de Pete WA5JCI 6 Mtr VUCC#361/781 Confirmed--2 Mtr VUCC#346/190 Confirmed 6 Mtr WAS#490--6 Mtr DX; /archives//html/Amps/2002-04/msg00439.html (8,734 bytes)
6. [AMPS] Building new 4-1000A amp (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Thu, 3 Jan 2002 09:07:00 -0600; Greetings, Even at 6 meters the 4-1000A will easily run legal output at 4KV. es 73 de Pete WA5JCI 6 Mtr VUCC#361/745--2 Mtr VUCC#346/190 6 Mtr WAS#490--6 Mtr DXCC/112 Confirmed Charter Life Member CS; /archives//html/Amps/2002-01/msg00036.html (11,967 bytes)
7. [AMPS] HV Pole Pigs ++ (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Thu, 20 Dec 2001 21:35:33 -0600; When you eat a prop, you die. es 73 de Pete WA5JCI 6 Mtr VUCC#361/743--2 Mtr VUCC#346/190 6 Mtr WAS#490--6 Mtr DXCC/111 Confirmed Charter Life Member CSVHFS #28 6 Mtr WAC-CW "What the hell kind of co; /archives//html/Amps/2001-12/msg00423.html (9,079 bytes)
8. Fw: [AMPS] Thar she blows (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Mon, 14 May 2001 17:45:17 -0500; Greetings, I didn't think that there was enough air on my 4-1000 until I put smoke in the airstream. That convinced me. Using a blower into a sealed chassis through the tube socket and chimney. That; /archives//html/Amps/2001-05/msg00277.html (9,343 bytes)
9. [AMPS] ?: Cooling (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Mon, 9 Apr 2001 13:59:58 -0500; Greetings, You'd need a small fan blowing onto the bottom sode of the socket to keep the seals cool enough. es 73 de Pete WA5JCI 6 Mtr VUCC#361/673--2 Mtr VUCC#346/190 6 Mtr WAS#490--6 Mtr DXCC/92 Co; /archives//html/Amps/2001-04/msg00203.html (8,566 bytes)
10. [AMPS] Two XFMR in parallel (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Wed, 17 Jan 2001 22:39:45 -0600; Greetings, Hmmmmm. Why not use them in a full wave set up? Surely when loaded both xformers will provide current to the load. GL, es 73 de Pete WA5JCI 6 Mtr VUCC#361/672-2 Mtr VUCC#346/190 6 Mtr WAS#; /archives//html/Amps/2001-01/msg00445.html (8,261 bytes)
11. [AMPS] w6sai (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Thu, 25 Jan 2001 17:16:12 -0600; Bad news for all of hamdom. One of the funniest stories I've ever read was by SAI in CQ mag, "The day we boiled the 304tls." es 73 de Pete WA5JCI 6 Mtr VUCC#361/672-2 Mtr VUCC#346/190 6 Mtr WAS#490 -; /archives//html/Amps/2001-01/msg00628.html (7,054 bytes)
12. [AMPS] Amp Explosions (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Sat, 9 Sep 2000 23:02:51 -0500; Greetings, I once repaired my 4-1000A amp, after a big light show, by replacing the air exhaust screen with a screen with smaller openings. The story behind that event. I flipped on the HV and there; /archives//html/Amps/2000-09/msg00344.html (7,261 bytes)
13. SV: [AMPS] Linearizing Linears, feedback or feedforward (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Wed, 27 Sep 2000 11:17:12 -0500; least Not so, a push-pull pair will make a good amp on six meters. es 73 de Pete WA5JCI EM21 6 meter VUCC # 361/658-WAS # 490-WAC CW 2 meter VUCC # 346/190 -- FAQ on WWW: http://www.contesting.com/F; /archives//html/Amps/2000-09/msg01048.html (9,818 bytes)
14. SV: [AMPS] Linearizing Linears, feedback or feedforward (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Wed, 27 Sep 2000 11:38:34 -0500; though they Check out 73 magazine, July 1970. K1CLL built an amp using 811As in push-pull. I actually duplicated the amp and it worked as stated. He claimed 400 watts out on CW. I didn't have a watt; /archives//html/Amps/2000-09/msg01050.html (10,283 bytes)
15. [AMPS] Dentron MLA 2500 Amplifier?++ (score: 1): Author: wa5jci@flash.net (Spencer Petri); Date: Fri, 17 Mar 2000 14:48:28 -0600; How about some of the big Russian tubes? I've gotten the GS35b delivered to my door for less than $100. It has a filament warm-up time, but the control grid is good for 26 watts and the tube doesn't; /archives//html/Amps/2000-03/msg00779.html (8,716 bytes)

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