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.
Do any ST-70 gurus have input and driver modifications (including tube changes, cirucitry modifications, etc.) to the ST-70 that would lift the slight veil that clouds the audio? Any help would be greatly appreciated.