To: | "R. Measures" <r@somis.org> |
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Subject: | Re: [Amps] AL-1200 Pop/Arching, 756 Pro II failure |
From: | Dana Roode <K6NR@ARRL.net> |
Date: | Sun, 12 Oct 2003 13:43:57 -0700 |
List-post: | <mailto:amps@contesting.com> |
Rich -- Does your AL-1200 have the "neutralization" circuit? I'm not sure, how do you tell? There is a small diameter red wire wrapped around a small toroid core feeding the +HV to the plate; there is a thick flat-wire copper coil with a resister in it connecting the plate to the tank circuit. Is there a problem with this circuit?
I certainly want to protect the exciter from any future amplifier problems, would a low pass filter do that, or are other things I can/should do? Is it all a matter of VHF energy? Dana
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