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.
Hi - as class A se amp output they work well at around 20mA quiescent into 5k load. Surprising if you look at the role they were designed for in early television.
Worth a try and can be used as input/ driver as well.
