Tube DIY Asylum

Posted by PakProtector (A) on June 02, 2024 at 05:08:25

In Reply to: RE: Dynaco ST70 modification to use KT66 posted by Tre' on May 30, 2024 at 10:27:24

As I recall from the KT66 data sheet, the max value for fixed bias is 250k.

However, the likely tubes to go in there are not the NOS MOV/Genelex...and so I would concur with the move that value to something more like 100k. That said, I would also contemplate lowering the matched 47k plate loads of the inverter...

Douglas


Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.

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