04-13-2016, 09:34 PM
No haven't given up yet. Was on another forum. Ok so if you look at the schematic find the cathode connection on the mixer tube. Follow it over and you will see that it goes over to a coil. That is the feedback winding of the osc coil. The other end of that winding goes to the 15K resistor and 700mmfd cap and then to the chassis. That winding is what is what we need to test the resistance of. There are two other winding on that same coil but those are usually ok. Also check the 15K resistor to see if it is open. Just for grins how much voltage do you have at the cathode of the mixer?? Should be pretty low like a few volts.
Terry
Terry
