[Amps] al811h reverse grid current

[gudguyham at aol.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 at 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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