[Amps] AL-82a Problem

[Carl]

The bandswitch usually goes on those.

Carl
KM1H


----- Original Message ----- 
From: "Bob Moore" <ki6iv at sbcglobal.net>
To: <ki6iv at sbcglobal.net>; <Amps at contesting.com>
Sent: Sunday, December 05, 2010 12:20 AM
Subject: Re: [Amps] AL-82a Problem


> Sorry, it is a AL-80b, not 80a...............Bob,  K6NV
>
>
>
> -----Original Message-----
> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
> Behalf Of Bob Moore
> Sent: Saturday, December 04, 2010 9:16 PM
> To: Amps at contesting.com
> Subject: [Amps] AL-82a Problem
>
>
> Tonight I was working away in the 160m contest, suddenly noticed no output
> from the amp, HV was fine, drive was fine.  I stopped and fooled with it a
> little, then went to 20m and tuned up, fine good power, went to 80m the
> same.  The SWR on 160m runs around 1.5 plus or minus a little.
>
> Went back to 160m and tuned up, no power output, then suddenly a visible 
> arc
> and some smoke in the vicinity of the tube (guessing).  Shut it down, then
> fired up on 80m, have output around 800w (which is normal).  I will get 
> into
> it tomorrow, any hints where and what I should look at other than burned
> components?
>
> ......Bob,  K6NV
>
>
> Bob Moore
> Truckee, CA  96161
> (530)575-5766
>
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