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.
May be a Canadian version of one of the Early Strombergs... they had a plant in Toronto as well as Rochester. I suspect that the 6F6s should be 6L6s or vice versa... what are the rest of the tubes?
I'm betting that Tom is right... I'd bet that all four output tubes are probably supposed to be 6L6s. Looks like the predecessor to the AU35 I have here...