[Amps] Al-82 Blowing fuses?

[Carl]

Look for arcing tracks in the fuse holders. That amp is well known for tube 
arcing and IED events but it usually takes out more than fuses. Check the 
plate choke for signs of stress and also for any continuity thru the plate 
blocking caps.

Remove the PS board and check for arcing marks.

I also received 3 bad filter caps out of 16 in an order from Ameritron about 
4-5 months ago.

Carl
KM1H

----- Original Message ----- 
From: "Gary Smith" <wa6fgi at sbcglobal.net>
To: <amps at contesting.com>
Sent: Tuesday, February 22, 2011 10:42 AM
Subject: [Amps] Al-82 Blowing fuses?


> Hello to the list.
>
> My AL- 82 (4 months old) blows the two fuses on the rear panel for what 
> seems to be no reason at all.  Switch on the power, fan rolls up to speed, 
> all seems well. Either when tuning or at a already tuned position, one or 
> both of the fuses lets go.
>
> Replace the fuses, switch the amp back on again and all is well for no 
> particular length of time. It might go a week or a month,it make take out 
> two fuses in a few moments. A
>
> Thought I'd poll the members of this list for ideas before calling 
> Ameritron. Fwiw, it is on 240V, line voltage is very stable here in 
> Sacramento county.
>
> Anyone else having this quirky issue?
>
> Gary...wa6fgi
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