Grid Stopper Values on 1940s Masco Guitar Amp?

[misterc57]

That will be so with both wirings.

But with a typical Fender/Marshall wiring the inputs have different sensitivity and input impedance.

As this is a receiver, the 2 inputs may be equal sensitivity, but that would mean mutual loading with shorting jacks.
With such wiring, lowering the 220k resistors without changing the jacks's wiring actually isn't a good idea.

Ok. I will put a new set of 220K in there. Thank you for the warning.

[mozz]

Heres the 6sl7 version, yes shorting jacks. I really like these old schematics, a single 6v6 driving a pair of 6l6 thru a interstage transformer, or another with a pair of 6v6 push pull driving a pair of 6l6 thru a interstage transformer, 3 rectifier tubes, who copied that (wording)?