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Re: [TenTec] Intermittent Power Amp?

To: TenTec@contesting.com
Subject: Re: [TenTec] Intermittent Power Amp?
From: Peter Hoon <peter@nednet.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 30 Mar 2007 16:37:37 -0600
List-post: <mailto:tentec@contesting.com>
This progress note is in reference to previous thread: Omni VI Plus rig sometimes would put out full power, but at other times, failed to put out more than 5 W.

Finally had time to debug; many thanks for all suggestions

Here's what has resolved the problem

Fellows, we disassembled the power amp module and found that a clipped bias pot lead stuck in skotch tape (used to hold insulation on circuit board) was shorting out drive RF. Since reassembly, the power amp works fine. Appears not to have been a problem with Mic/Power pot on front panel after all.

Thanks and 73s

Peter
VE1CHS
Nederland, Colorado



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