The safety diode from the PS board to ground is shorted, probably from a
tube arc. Might also have taken out the bias zener.
Carl
KM1H
----- Original Message -----
From: "Georgens, Tom" <Tom.Georgens@netapp.com>
To: <amps@contesting.com>
Sent: Sunday, July 27, 2008 7:09 PM
Subject: [Amps] Al80A problem
>I turned on my AL80 today and while the hv looked fine, it was drawing grid
>current and had negative plate current while idling. I had nothing
>connected to it and it was in standby.
>
> Anything easy that I should check first.
>
> Thanks and 73
>
> Tom W2SC
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>
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