With 10mA of plate current those 6.8K resistors really need to be 3.3K to get the voltages listed in the schematic. It seems needlessly complicated for what it is doing, and I wouldn't DC couple it to anything as you can't guarantee the output will be close to ground potential.
I think there is a fundamental flaw in the design relating to the floating supplies.
Your proposal on the filament supply is fine.
Are you doing two for stereo?
I think there is a fundamental flaw in the design relating to the floating supplies.
Your proposal on the filament supply is fine.
Are you doing two for stereo?
Your proposal on the filament supply is fine??
I think there is a fundamental flaw in the design
Is the cathode resistor 470R is OK? for 10mA of plate current.
What should be the design?
Thanks!
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Without knowing you have taken a conceptual discussion schematic from glassware and tries to implement it. Conceptual schematics takes some working usually irl.
Neither is it an aikido follower. Nor a white follower. Some direct coupled experimental discussion schematic I would say. You cant trust dc output.
Neither is it an aikido follower. Nor a white follower. Some direct coupled experimental discussion schematic I would say. You cant trust dc output.
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See ACF-2 with tube 12au7.
http://www.tubecad.com/2012/02/07/ACF-2 9-Pin.pdf
http://www.tubecad.com/2012/02/07/ACF-2 9-Pin.pdf
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