Curtis Mathes FF500M no vertical

[ctc17]

Check pin 6 of the 6GF7, it should be around 400volts, only check this pin when you have no vert sweep or you may fry your meter. Even better is to pull the tube out and check socket pin 6.

Check pin 8 with the tube in, should be over 150 volts.

If one of those is missing you wont have any vert.

Pin 3 is the cathode, 16 schematic says 85 volts.

I would really be looking at pin 6, that will check the secondary of the vert out transformer, the power resistor and connections. If the .001 shorted and took out the power resistor etc.