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.
I have read a lot of the debate over DC heating of DHT and would like to experiment myself. I am some what new to all this and would like to know if there is a DIY DC regulated circuit for my 300b heaters that I might be able to handle?