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 am looking for some D3A tubes and came across some Siemens CV10804. Sound wise, is it as good as the (previously) more common seen Siemens 7721 D3A? Thanks in advance for your inputs.