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1. [Amps] Dual 8877 Alpha 77S final query (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Tue Jul 29 13:31:50 2003; I believe Alpha fires the high voltage at the same time as the filament .. they just delay the ability to drive the tube until the warm up period is complete. As you mentioned the tranny has all the; /archives//html/Amps/2003-07/msg00141.html (7,816 bytes)
2. [Amps] re Reduction of 50hz hum via metal plate (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Sun Jun 29 09:37:10 2003; Probably any material that spaces the magnetic field of the transformer away from coupling into the steel chassis would work, aluminum being non ferrous should work as well as a carton, and stronger; /archives//html/Amps/2003-06/msg00234.html (7,517 bytes)
3. [Amps] PS project (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Thu Apr 10 14:37:58 2003; How much current are you drawing under load ?? 5000 v at 2 amps (if your drawing that much) is 10KW and a 25 amp breaker is way to small. If your drawing 1 amp its still too small a breaker.. Merv; /archives//html/Amps/2003-04/msg00100.html (7,265 bytes)
4. [Amps] Socket pin needed (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Thu Apr 10 14:39:56 2003; I am in dire need of a pin or socket contact for a Eimac SK-510 socket. Have a new socket some one removed a pin from. Any one have a junker with 1 good contact or know where to find one. Will pay of; /archives//html/Amps/2003-04/msg00101.html (7,209 bytes)
5. [Amps] NCL 2000 (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Wed Apr 16 11:44:42 2003; Its one of the terms used by the 10-4 good buddies group sounds like to me..; /archives//html/Amps/2003-04/msg00174.html (6,719 bytes)
6. [Amps] Why hasn't solid state replaced tubes? (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Tue Mar 4 17:56:57 2003; I have a 50 kw AM transmitter a mile up the road from me, its modular 1KW - 2 transistor FET- cards.. over 50 cards into combiners with the same amount of modules for audio.. the backup is a 10 kw a; /archives//html/Amps/2003-03/msg00131.html (8,829 bytes)
7. [Amps] Use of Manual T/R Switches (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Thu Mar 6 16:37:10 2003; Maybe more famous was the Johnson model.. and it was good for 1 KW AM service. Had some problems with "suckout" that could be cured to some extent by the length of coax between the amp and the the s; /archives//html/Amps/2003-03/msg00269.html (8,675 bytes)
8. [Amps] 3-500zg tubes (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Sun Mar 9 21:41:08 2003; Very true Tom, I lived in China for a year or so and saw first hand the "quality control". The story thats never told is that when the tubes or other items come back from failure, the chief engineer; /archives//html/Amps/2003-03/msg00410.html (7,379 bytes)
9. [Amps] 3-500zg tubes (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Mon Mar 10 11:07:45 2003; their it build to Partly true Rich.. if you call that good news. They also execute people just to harvest organs, no other reason, execute for religious participation, petty theft, any speaking agai; /archives//html/Amps/2003-03/msg00426.html (8,453 bytes)
10. [Amps] OK that does it (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Tue Mar 11 10:51:40 2003; No problem for foreigners usually at all. They like your money! Not sure if BY4AA is still on the air, but if your in Shanghai thats one place to try and op. I have been there a few times Xuru used; /archives//html/Amps/2003-03/msg00447.html (7,006 bytes)
11. [Amps] Hard-drive Dive (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Fri Mar 21 22:47:36 2003; Amen.. cant understand how an expert on every subject would even admit to not having parasite suppression on his own machine. Merv K9FD; /archives//html/Amps/2003-03/msg00768.html (7,795 bytes)
12. [Amps] Hard-drive Dive (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Sat Mar 22 19:00:10 2003; It Used one of those set ups with a Central Electronics 20-A driving 4 6AG7"s in GG driving a pair of 813's in GG. Was ok if you kept the audio way way down. Good ole days ? Merv K9FD; /archives//html/Amps/2003-03/msg00780.html (8,462 bytes)
13. [Amps] Parasites (parasitics) (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Thu Mar 27 14:54:29 2003; a Probably a dumb question.. in 4-1000 amps the "parasitic" or oscillation that occurs was in the 90 or so MHZ region. It seemed very easy to cure that by moving that "resonant" freq out of the VHF; /archives//html/Amps/2003-03/msg00883.html (8,792 bytes)
14. [Amps] Parasites (parasitics) (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Thu Mar 27 15:14:30 2003; with frequency, lower needed affect Sorry about that .. did not measure the L.. but 3 turns of number 12 wire 1inch diameter is what memory tells me. Grounded grid. Eimac plastic sockets. Was very r; /archives//html/Amps/2003-03/msg00886.html (9,262 bytes)
15. Spam Alert: Re: [Amps] The Philosophy of Science (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Tue Feb 11 12:33:44 2003; and Since I am not in the field of Science, but a mere engineer at best. One thing that troubles me from the Scientific community is a statement as the above, "distortions of theoretical science" WE; /archives//html/Amps/2003-02/msg00252.html (9,652 bytes)
16. [Amps] Big Bang in the Thermionic Cosmos - TSPA (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Wed Feb 12 18:11:51 2003; Must all be THEORY again, as the figures keep changing, but then dont mess with exact theory its precise and correc 25; /archives//html/Amps/2003-02/msg00308.html (8,819 bytes)
17. [Amps] Its not April 1 yet (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Thu Jan 23 16:52:44 2003; And I bet if you set your 500 watt sweep tube amp on a little purple plate it will "swing" 2KW output. All that vibration and excess power should go somewhere.. But watch the vibration it may bring d; /archives//html/Amps/2003-01/msg00192.html (7,200 bytes)
18. [Amps] Its not April 1 yet (score: 200): Author: kh6jj at mobettah.net (Merv Schweigert); Date: Thu Jan 23 18:50:07 2003; fixed? If I leave the photo on over a half hour will it raise the plate dissiption? Most definitly Ken, I have used the purple plate many times on 4-125 A tubes and within 24 hours they are 4-1000 A; /archives//html/Amps/2003-01/msg00198.html (7,831 bytes)

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