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Maybe this will help?

Posted by Russ57 (A) on March 10, 2007 at 07:37:15

In Reply to: Exceeding Max Grid Resistor Value posted by YoungFred on March 9, 2007 at 15:39:41:

Never hurts to see how others did it. Might look at 6205, or 6072?? Not a mic guy but I'd think you'd want a tube made for low microphonics in a rough environment.

Russ

• U-47 schematic   (Open in New Window)

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