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Total 24 documents matching your query.

21. [Amps] Alpha 87A Tubes 3CX800A7 and the 3CX P 800A7 (score: 1)
Author: "jsternmd" <jsternmd@earthlink.net>
Date: Mon, 31 Dec 2007 11:26:02 -0500
What would typical grid current be for an Alpha 87A running 1500w on 20 or 40m? My 87A gets up to 105 ma (Yellow LED) at times (into a very low SWR antenna or dummy load). Is this normal? WOuld the 3
/archives//html/Amps/2007-12/msg00287.html (27,419 bytes)

22. [Amps] HF Autoband AMp Prefences (score: 1)
Author: jsternmd <jsternmd@earthlink.net>
Date: Wed, 23 Apr 2008 17:08:31 -0400 (GMT-04:00)
Hi, Would appreciate performance opinions about Tokyo HL-2.5KFx versus an Alpha 87a besides the expensive 3CX800 tubes in the Alpha87a. Tnx 73 Jerry K1JOS ____________________________________________
/archives//html/Amps/2008-04/msg00276.html (7,184 bytes)

23. [Amps] Alpha 87A Voltage Switch (score: 1)
Author: "Jerry Stern" <jsternmd@earthlink.net>
Date: Sun, 4 May 2008 10:58:25 -0400
What is the intended purpose of the "Lo" voltage position on the Alpha 87A front panel?? 73 Jerry K1JOS _______________________________________________ Amps mailing list Amps@contesting.com http://li
/archives//html/Amps/2008-05/msg00030.html (6,848 bytes)

24. [Amps] Alpha 87A Low Voltage Switch (score: 1)
Author: "Jerry Stern" <jsternmd@earthlink.net>
Date: Sat, 2 Aug 2008 09:03:16 -0400
Hi Group, Anyone know why the Alpha 87A has the hi and lo voltage switch on the front panel when it's never supposed to be used on the lo setting? Just curious. 73 Jerry K1JOS _______________________
/archives//html/Amps/2008-08/msg00009.html (6,444 bytes)

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