07-10-2013, 01:45 AM
Read the OP again. He's saying that he's measuring from the plate of the 6A7 (pin 2) to the cathode (K, pin 6), between which should be 250V, but he is seeing no voltage there.
As far as his power supply voltages, I would check the bias resistor (47), and then the field coil on the speaker. No voltage at all to the 6A7 plate could be a shorted capacitor (20) or possibly an open 1st IF coil or resistor (9).
As far as his power supply voltages, I would check the bias resistor (47), and then the field coil on the speaker. No voltage at all to the 6A7 plate could be a shorted capacitor (20) or possibly an open 1st IF coil or resistor (9).
