In Reply to: RE: Sakuma-style GM-70 design - critiques please! posted by AudioGenesis on January 4, 2019 at 10:22:03:
With the reduction of grid leak value on the driver, so then comes increase in value of the coupling capacitor, as you know.Can you find a way to DC couple input to driver?
I can see that with 200V across the input tube it could fit very nicely with a DC coupled 2A3, or 300B driver run at 2A3 OP with an 'upside down' input stage (ala www.labjc.com), yet understanding your design ideal, I digress.
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Follow Ups
- RE: Sakuma-style GM-70 design - critiques please! - shane. 01/4/1920:59:31 01/4/19 (0)