Need Help with Dynaco Amp
I am working with a friend to rewire his house audio system. He has 3 Dynaco ST 400 Series II amps each driving multiple zones. The amps are approximately 10+ years old. The amps only have a blank front panel and on the real panel an RCA unbalanced input for left/right and a left/right output. There is no on/off switch that I have been able to find. Nor have I been able to find a remote input to control on/off.
I have performed extensive Google searches without finding any documentation other than some pictures, which unlike my friend's amps, show a front panel with an on/off switch.
I am hoping that someone here can point me to a source for documentation, or have a copy of an owner's manual that I can copy or possibly help locate a remote on/off input.
Many thanks for any help you can provide.