11-17-2016, 09:39 AM
You might check the resistor numbered 117 on the schematic. This is a chassis mounted wirewound resistor that drops plate voltage to the oscillator and AF tubes. If it opens you will lose plate voltage to the affected tubes.
Also filter cap 70A could be shorted, causing resistor 117 to open.
Also filter cap 70A could be shorted, causing resistor 117 to open.