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1. [Amps] Johnson 6N2 Thunderbolt switch (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Sun, 19 Jan 2003 14:32:13 -0500; I just purchased a 6N2 T'bolt on ebay and discovered that the output bandswitch is broken (surprise!). I'm hoping someone has something suitable in their junkbox or knows where I might obtain a repla; /archives//html/Amps/2003-01/msg00162.html (6,827 bytes)
2. [Amps] Johnson 6N2 Thunderbolt switch (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Sun, 19 Jan 2003 16:05:41 -0500; Having re-read my first post, I realized that some clarification is in order. The switch wafer is actually 1 5/16" across. I'm not sure this matches the original switch. It looks like the switch had; /archives//html/Amps/2003-01/msg00164.html (6,727 bytes)
3. [Amps] 3-500's and stability (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Thu, 22 Aug 2002 21:21:08 -0400; I'm sure I've posted this before but for the benefit of the new guys I'll do it again. I have on old Drake L-7 that has been my workhorse for many, many years. The amp is extremely stable. There has; /archives//html/Amps/2002-08/msg00213.html (8,043 bytes)
4. [Amps] Bird PEP board (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Thu, 02 May 2002 21:10:20 -0400; The mystery of the "Battery Eating Bird" has been solved! I drew out the circuit and found that each battery has a Zener shunt regulator circuit associated with it. A 6.2 volt Zener through a 150 ohm; /archives//html/Amps/2002-05/msg00014.html (6,719 bytes)
5. [Amps] Bird PEP circuit (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Fri, 03 May 2002 06:48:23 -0400; I found a meter circuit on the below site that is almost identical to the Bird unit. It will be easier to describe the differences than to draw out the Bird circuit. http://members.dandy.net/~k0xp/Te; /archives//html/Amps/2002-05/msg00018.html (6,956 bytes)
6. [Amps] Bird peak power circuit (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Sun, 05 May 2002 11:14:47 -0400; I did some further tests on my circuit board. I first removed the battery for the negative supply and jumpered across it's contacts. The only change I could see was that the circuit output with no si; /archives//html/Amps/2002-05/msg00030.html (6,791 bytes)
7. [Amps] Sale of CB amps on eBay (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Sun, 26 May 2002 12:23:25 -0400; The sale of these amps continues unabated despite my protests to eBay. They sent me an e-mail that said essentially, "If you don't like it, complain to the authorities and leave us alone". I wrote to; /archives//html/Amps/2002-05/msg00437.html (8,116 bytes)
8. [Amps] IMD vs. Vcc (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Mon, 01 Apr 2002 06:33:11 -0500; ? As long as rotten splatter doesn't go outside the band, it is not against the Part 97 rules. Not True! See Part 97 - section 307a 73, Roger; /archives//html/Amps/2002-04/msg00005.html (7,222 bytes)
9. [Amps] CB amps on e-Bay (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Wed, 17 Apr 2002 20:34:32 -0400; I've noticed a bunch of obvious CB amps for auction on e-Bay. I've been going through the FCC regs trying to find an easy way for a non-ham to tell the difference between a legal "ham" amp and one of; /archives//html/Amps/2002-04/msg00407.html (7,894 bytes)
10. [Amps] QSK amp switching with a TS-940s (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Mon, 22 Apr 2002 16:24:38 -0400; The relay makes in about 2 ms. However, the actuating voltage is delayed 3 ms from keydown! My 940 starts making RF at about 5.5 ms after keydown leaving virtually no time for the amp relay(s) to swi; /archives//html/Amps/2002-04/msg00519.html (7,261 bytes)
11. [Amps] Bird PEP board (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Wed, 24 Apr 2002 17:29:26 -0400; Does anyone have a schematic for this board? Mine draws about 11 ma from each battery. This seems like a bunch for a low power op-amp like the LM-324. 73, Roger; /archives//html/Amps/2002-04/msg00540.html (6,239 bytes)
12. [AMPS] HV connectors (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Mon, 19 Nov 2001 19:30:54 -0500; I, frankly, get a little nervous whenever I disconnect the Millen high voltage connector on the back of my Drake L7. The wire to it looks like the center of RG-8 so there's plenty of insulation. Or i; /archives//html/Amps/2001-11/msg00357.html (8,009 bytes)
13. [AMPS] QSK relay (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Sun, 11 Mar 2001 13:51:12 -0500; I'm in the process of adding QSK to a friends TL-922 and would like recommendations on the input relay. A DPDT unit would be nice to also switch the STBY/ ON AIR lights but two SPST would work just a; /archives//html/Amps/2001-03/msg00087.html (6,719 bytes)
14. [AMPS] QSK relay (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Sun, 11 Mar 2001 21:03:02 -0500; To all who replied with Alan Bond's site....thank you. The d'Italia relays seem perfect for my needs. 73, Roger -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Admi; /archives//html/Amps/2001-03/msg00092.html (6,546 bytes)
15. [AMPS] 77SX (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Tue, 02 Jan 2001 16:53:48 -0500; You didn't say where in Europe you were. In Germany, the power is 3 phase with 220v from line to ground. American wired products that run 110v items, such as blowers or timers, from line to ground do; /archives//html/Amps/2001-01/msg00069.html (7,646 bytes)
16. [AMPS] 77SX (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Tue, 02 Jan 2001 21:16:11 -0500; Hi Paul... Of course you are 100% correct! Shows what happens when you try to dash off a quick reply just after the wife has given the supper call! The point I was trying to make is that, in the US,; /archives//html/Amps/2001-01/msg00080.html (8,627 bytes)
17. [AMPS] Eimac - Care and Feeding of Power Grid Tubes (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Sat, 06 Jan 2001 17:35:32 -0500; Another pompous, arrogant ass heard from! -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@; /archives//html/Amps/2001-01/msg00219.html (9,521 bytes)
18. [AMPS] Clipperton help (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Thu, 25 Jan 2001 21:09:26 -0500; I seem to recall that the proper way to tune amps. that were a bit less than stable, was to always start with the loading capacitor fully meshed. Perhaps some of our amp gurus can shed some more ligh; /archives//html/Amps/2001-01/msg00637.html (7,307 bytes)
19. [AMPS] DC Filaments??? (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Wed, 01 Nov 2000 16:45:36 -0500; I've heard pilot lamps last longer when run on AC but I'm not sure why. BTW the reason the ART-13, T-195, etc filaments were run on DC is that they are aircraft/mobile rigs where the primary power is; /archives//html/Amps/2000-11/msg00010.html (7,936 bytes)
20. [AMPS] High Voltage Connectors? (score: 1): Author: n1rj@pivot.net (Roger D. Johnson); Date: Tue, 18 Apr 2000 18:01:52 -0400; The use of unshielded wire for exposed HV wiring scares me. If the insulation cracks or breaks down, I would much rather have the HV arc to a shield than to me! 73, Roger -- FAQ on WWW: http://www.co; /archives//html/Amps/2000-04/msg00103.html (8,093 bytes)

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