Motorola 17T21 Flyback & Schematic

[dieseljeep]

Originally Posted by Mre12ax7

I will be testing all the voltages on the horiz, output and osc tubes.
I will use my Fluke 87 DMM or my Eico VTVM with the set plugged into a isolation transformer.

Also, check the voltages on the audio output tube. It's used as a voltage divider, known as stacked B+. Try substituting the 25L6 tube.