• 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.

Mute circuit on sonic frontier line one


2005-09-07 2:23 am
Hi all, I have sonic frontier line one tube preamp with black front face. Some how the mute circuit has some wrong in it. After warm up the circuit still mutting. I would like to know where can I buy the circuit diagram? or any one can give me the drawing of this relay circuit? or any one know where can I have it fit in Minneapolis area?. Thanks all in advance.