09-01-2013, 10:26 PM
Check for B+ voltage on the plate of the 6F6 output tube. If you have voltage on the screen grid pin but not on the plate then the output transformer primary is open.
You should have about 250V on the screen and slightly less maybe 240 or so on the plate.
You should have about 250V on the screen and slightly less maybe 240 or so on the plate.