01-20-2011, 11:41 PM
Two things come to mind. One check all ground connection particularity rivets. Two grid to filament leakage in one of the tubes. The fact that you can disconnect the grid lead on the 6Q7and in goes away should eliminate the power supply.
Terry
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry