slowhand:
if your cortese is anything like my chardonnay, the switch in the right front is mute (toward the front is off, toward the back is on), the switch between the towers is ht/bypass (front - off, back - on), and the switch on each side of the 6SN7 is high/low gain. toward the back is low gain. toward the front is high gain i believe. and there's another gain knob on the back as well. congrats.
if your cortese is anything like my chardonnay, the switch in the right front is mute (toward the front is off, toward the back is on), the switch between the towers is ht/bypass (front - off, back - on), and the switch on each side of the 6SN7 is high/low gain. toward the back is low gain. toward the front is high gain i believe. and there's another gain knob on the back as well. congrats.