Quote:
Originally Posted by Kevin Kuehn
You can try tying pin 7(grid) of V105 directly to pin 8(cathode). With the cathode and grid both at the same -85v it should cut-off the tube from conducting current and allow pin 6 (plate) to go positive. With the grid at -85 and -84 on the cathode it should be cut-off with no IF signal present. Check R120, R121 for correct resistance. Something needs to give.
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R120 is 58 ohms, R121 is 1.03 Meg. Can I run the CRT with the grid and cathode tied on V105 to get my voltage?