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.
just got some spares for my manley amps. they work well with sovtek 6550WA, A, or B. Sevelanta's seem to work well. this box was bought in 1994 and not used.