This circuit was found in documentation from 1943. The output power is 5 W from a double counterphase triode. The 6C5 works as a preamplifier for a high impedance pick-up.

This circuit was found in documentation from 1943. The output power is 5 W from a double counterphase triode. The 6C5 works as a preamplifier for a high impedance pick-up.