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1. [Amps] HV/Tune-up Procedure for AL-80A (score: 1): Author: "Scott Manthe" <n9aa@arrl.net>; Date: Fri, 12 Nov 2004 00:10:46 -0600; Hi the the List, I just got a very nice Ameritron AL-80A, which seems to be in very nice shape- certainly excellent cosmetically. Unfortunately, the fellow I bought it from neglected to pack the manu; /archives//html/Amps/2004-11/msg00162.html (6,985 bytes)
2. Re: [Amps] HV/Tune-up Procedure for AL-80A (score: 1): Author: R.Measures <r@somis.org>; Date: Fri, 12 Nov 2004 01:32:11 -0800; Scott -- The recommended tune-up procedure in the Owner's Manual talks about using more current than the tube mfg's max rating of 400mA. I would tune a single 3-500Z at 400mA - which requires c. 70w; /archives//html/Amps/2004-11/msg00166.html (8,499 bytes)
3. Re: [Amps] HV/Tune-up Procedure for AL-80A (score: 1): Author: jsb@digistar.com; Date: Fri, 12 Nov 2004 08:53:57 -0500 (EST); It's not so much the idle HV but what the voltage drop is between ZSAC (key down but no signal from exciter) and full output - if it drops 500V or more you should connect it to 220VAC. A 500V drop in; /archives//html/Amps/2004-11/msg00169.html (8,694 bytes)
4. Re: [Amps] HV/Tune-up Procedure for AL-80A (score: 1): Author: jsb@digistar.com; Date: Fri, 12 Nov 2004 08:58:15 -0500 (EST); Need to clarify this - tune for max output at 20W, then tune for max output at 60W. If you try to tune the amp with 60W and the load and plate controls (and/or band switch) are not in the right place; /archives//html/Amps/2004-11/msg00170.html (7,874 bytes)
5. Re: [Amps] HV/Tune-up Procedure for AL-80A (score: 1): Author: "Harold B. Mandel" <ka1xo@juno.com>; Date: Fri, 12 Nov 2004 15:32:05 -0500; Dear Scott, You might wish to open the HV circuit and let the tubes cook with just filament voltage applied for about a day. This might serve to prolong the tube life and to prepare them for the shoc; /archives//html/Amps/2004-11/msg00184.html (8,408 bytes)
6. Re: [Amps] HV/Tune-up Procedure for AL-80A (score: 1): Author: "Scott Manthe" <n9aa@arrl.net>; Date: Sat, 13 Nov 2004 08:36:59 -0600; Thanks to everyone who offered help and advice in response to my query. It was very much appreciated! 73 to all, Scott, N9AA _______________________________________________ Amps mailing list Amps@con; /archives//html/Amps/2004-11/msg00197.html (7,422 bytes)

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