Please be carefull if You open the amp. Voltages are reaching
480 volts. You have no heater current flowing through the tubes.
Is the amp a 120 Volt version ?
Please switch on the amp but let it standby.
Please measure with a DC-voltmeter between pin 4 and 9
on the preamp socket located on the front close to the knobs.
Pin 1 is 7 o´clock, pin 9 is 5 0´clock.
There has to be 6 to 7 Volt DC.
If not, plug off the amp and take away the main cable.
Please check the connections on the main transformer.
That´s the bigger one. Maybe take a picture from the
lower side of the transformer. I´m interested on the
free side where the inputs are soldered.
Thank You very much for Your help