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Re: [Amps] al811h reverse grid current

To: Kurt Cathcart <Kurt@KuhlRoad.net>, <Amps@contesting.com>
Subject: Re: [Amps] al811h reverse grid current
From: gudguyham--- via Amps <amps@contesting.com>
Reply-to: "gudguyham@aol.com" <gudguyham@aol.com>
Date: Sat, 21 Feb 2026 11:10:31 +0000 (UTC)
List-post: <mailto:amps@contesting.com>
I answered your question on the other forum.


Sent from the all new AOL app for iOS


On Friday, February 20, 2026, 7:11 PM, Kurt Cathcart <Kurt@KuhlRoad.net> wrote:

Several months ago a seem to have a 572b go bad.  I replaced it and also 
replaced the resistors with GDTs (amoung other mods).

Now I'm getting reverse grid current and the GDTs and lighting up.  I 
put in a net set of 572b and am getting the same thing, The view of my 
Sockets matches the picture on the Instructions .

Advice?


-Kurt


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