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21. [Amps] Re: Amps Digest, Vol 24, Issue 31 (score: 1)
Author: K3vw@aol.com
Date: Fri, 17 Dec 2004 20:42:14 EST
The AL-80A and SB-1000 are about the same. Willy K3VW _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2004-12/msg00229.html (6,073 bytes)

22. [Amps] Re: Amps Digest, Vol 24, Issue 54 (score: 1)
Author: K3vw@aol.com
Date: Thu, 30 Dec 2004 09:54:23 EST
The power supply of a Dentron GLA-1000A will not support a pair of 4CX250 type tubes. You will have to voltage double it and then it will only support about 500 ma of plate current. One tube, maybe,
/archives//html/Amps/2004-12/msg00397.html (6,241 bytes)

23. [Amps] Re: Amps Digest, Vol 25, Issue 30 (score: 1)
Author: K3vw@aol.com
Date: Thu, 13 Jan 2005 17:09:21 EST
Contact Bill Edwards at Omega Electronics in Knightdale, NC 919-266-7373 He was the service mgr. at Amp Supply Co. before they went under. Willy K3VW _______________________________________________ A
/archives//html/Amps/2005-01/msg00252.html (6,159 bytes)

24. Re: [Amps] Amps Digest, Vol 26, Issue 85 (score: 1)
Author: K3vw@aol.com
Date: Wed, 23 Feb 2005 20:22:04 EST
I say the AL-1500 for several reasons. The 1500 has a grid trip protection circuit, the 1200 does not. The 1200 has a neutralizing circuit to keep it from oscilatting on 10 meters, the 1500 is stable
/archives//html/Amps/2005-02/msg00705.html (7,016 bytes)

25. Re: [Amps] Amps Digest, Vol 26, Issue 105 (score: 1)
Author: K3vw@aol.com
Date: Sun, 27 Feb 2005 07:31:24 EST
Some of the frying sounds like a filter cap., Pull the tube out, see if the voltage comes up normally. May have a grid-to-filament short in tube. Hard to diagnose without being there. Relace suspect
/archives//html/Amps/2005-02/msg00886.html (6,231 bytes)

26. Re: [Amps] Amps Digest, Vol 29, Issue 40 (score: 1)
Author: K3vw@aol.com
Date: Sun, 22 May 2005 21:56:22 EDT
Have a filament choke for a 3CX3000F7, 51 amps, with mounting brackets, $50.00 Also have Peter Dahl filament transformer for it, $125 or $150 for both. _______________________________________________
/archives//html/Amps/2005-05/msg00261.html (6,135 bytes)

27. Re: [Amps] Amps Digest, Vol 31, Issue 31 (score: 1)
Author: K3vw@aol.com
Date: Sun, 17 Jul 2005 12:26:29 EDT
Amp in refers to from exciter to amp. Amp out, refers to antenna tuner or antenna switch. Willy K3VW _______________________________________________ Amps mailing list Amps@contesting.com http://lists
/archives//html/Amps/2005-07/msg00191.html (6,087 bytes)

28. Re: [Amps] Amps Digest, Vol 31, Issue 34 (score: 1)
Author: K3vw@aol.com
Date: Tue, 19 Jul 2005 13:35:41 EDT
Did he run it grounded grid? What is filament voltage/ current of a GU-84B ? Did he have to build a socket or can you buy them. What is plate disapation of the 84B ? I think 2500 watts. Willy _______
/archives//html/Amps/2005-07/msg00214.html (6,190 bytes)

29. Re: [Amps] Amps Digest, Vol 31, Issue 54 (score: 1)
Author: K3vw@aol.com
Date: Thu, 28 Jul 2005 14:56:06 EDT
Ron, contact Tom Rauch, _W8JI@contesting.Com_ (mailto:W8JI@contesting.Com) He will the right info. Willy K3VW _______________________________________________ Amps mailing list Amps@contesting.com htt
/archives//html/Amps/2005-07/msg00345.html (6,151 bytes)

30. Re: [Amps] Amps Digest, Vol 32, Issue 36 (score: 1)
Author: K3vw@aol.com
Date: Sun, 7 Aug 2005 15:12:59 EDT
To: YV5LIX- Jose The Ameritron AL-1500 is a very good amplifier for it's price range. The tube is good and has had a bad rap from power hungry egotist's who tried to drain every last watt they could
/archives//html/Amps/2005-08/msg00251.html (7,162 bytes)

31. Re: [Amps] Amps Digest, Vol 32, Issue 37 (score: 1)
Author: K3vw@aol.com
Date: Sun, 7 Aug 2005 17:41:20 EDT
On the GINPOLE ( Jenpole) Rohn named it a " erection fixture ".i.e., Rohn EF-25/45, etc. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.
/archives//html/Amps/2005-08/msg00256.html (6,326 bytes)

32. Re: [Amps] Amps Digest, Vol 32, Issue 67 (score: 1)
Author: K3vw@aol.com
Date: Sun, 14 Aug 2005 13:12:40 EDT
Check the grid resister that goes to B-. It has changed value from the arc over in the bad tube. If that bis OK, check the grid meter shunt. Willy K3VW _______________________________________________
/archives//html/Amps/2005-08/msg00488.html (6,532 bytes)

33. Re: [Amps] Amps Digest, Vol 34, Issue 15 (score: 1)
Author: K3vw@aol.com
Date: Tue, 4 Oct 2005 17:14:22 EDT
To Hecter, XE2K, look at the padding capacitors on the output capacitor, on the right. Replace them with Centralab 850A's. I believe they are equal to 600 pf. I would use two- 300 pf @ 5 KV. Willy K3
/archives//html/Amps/2005-10/msg00118.html (6,242 bytes)

34. Re: [Amps] Amps Digest, Vol 34, Issue 37 (score: 1)
Author: K3vw@aol.com
Date: Tue, 11 Oct 2005 17:41:05 EDT
I would try retaping the B & W inductor. It does not match your plate load impedance. Either retap it or check to see how you can re-configure it. _______________________________________________ Amps
/archives//html/Amps/2005-10/msg00287.html (6,182 bytes)

35. Re: [Amps] Amps Digest, Vol 34, Issue 90 (score: 1)
Author: K3vw@aol.com
Date: Sun, 30 Oct 2005 07:02:53 EST
If your grid current meter is going backwards, check out the tubes, one or both may have a grid-to-filament or cathode short. _______________________________________________ Amps mailing list Amps@co
/archives//html/Amps/2005-10/msg00682.html (6,315 bytes)

36. Re: [Amps] Amps Digest, Vol 34, Issue 92 (score: 1)
Author: K3vw@aol.com
Date: Sun, 30 Oct 2005 17:27:38 EST
350 watts, maximum !! Willy K3VW _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2005-10/msg00699.html (6,038 bytes)

37. Re: [Amps] Amps Digest, Vol 36, Issue 9 (score: 1)
Author: K3vw@aol.com
Date: Wed, 7 Dec 2005 17:37:43 EST
Your 8877 tube has an intermittent , grid-to-filament/cathode short. It can be other things, but 95% of the time, that's it !! You can temporarly "fix" the tube but that's for another day. Willy K3VW
/archives//html/Amps/2005-12/msg00078.html (6,627 bytes)

38. Re: [Amps] Amps Digest, Vol 36, Issue 10 (score: 1)
Author: K3vw@aol.com
Date: Wed, 7 Dec 2005 17:39:21 EST
I have a used but good 8877 tube, socket & chimney. See me at my e mail address, which is good on QRZ. Willy K3VW _______________________________________________ Amps mailing list Amps@contesting.com
/archives//html/Amps/2005-12/msg00079.html (6,123 bytes)

39. Re: [Amps] Amps Digest, Vol 36, Issue 48 (score: 1)
Author: K3vw@aol.com
Date: Mon, 26 Dec 2005 17:53:08 EST
Bob, Ki6iv, check the AL-80B's plate choke and by-pass caps. If everything else looks OK, put another know good 3_500Z in it and see if the power goes up. As for the high input SWR, check all bands.
/archives//html/Amps/2005-12/msg00340.html (6,379 bytes)

40. Re: [Amps] Amps Digest, Vol 39, Issue 34 (score: 1)
Author: K3vw@aol.com
Date: Sun, 12 Mar 2006 07:23:51 EST
To Scott, N9AA on his question about his Amp Supply LK-500ZC. Keep what you have Scott. You have the best bang for the buck now. The AL-1200 has a tendency to oscillate at ten meters. That is why the
/archives//html/Amps/2006-03/msg00284.html (6,837 bytes)


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