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 built this Octal Cornet phono pre on a piece of marble. I had to drill 64 holes in it. It sounds great but I am trying to trace a hum. As soon as I get that figured out, I'll tiddy up the wiring hanging down.