WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
As I posted some time ago, the below schematic, the project has finally come to fruition stage. Rooting around in college, I happened upon an Mullard ECC33. How usable with 6v6GTs is it? (albeit changing a few values in the circuit below)