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Original Message
RE: what is the suppressor grid (pin 4) tied to?..-nt-
Posted by Tre' on January 25, 2017 at 10:36:09:
The heater of the 6c6 should have 6.3 volts across it.
I assume the two LEDs are between the cathode and ground.
The 4 volts is your bias voltage (cathode) not you heater (filament) voltage.
Tre'