left where no sound comes
from the left when increasing the volume accompanied by a startling crackle, in the past the unit has reoccurs I'm advised that the unit needs a replacement multigang volumecontrol potentiometer. Can you comfirm this and suggest a source of suppl. more...
below technical instructions to fix your Amp problem. Amp has motorized volumecontrol and motor drive circuit has problem so motor rotates just one more...