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.
After searching replacement for broken stereo-balance pot (unusually long threaded part + shaft/D6mm = 30 mm), I given up and decided to build a new one on the basis of old skeleton and new dual-gang pot.
