01-21-2010, 05:38 PM
Generally speaking positive voltage on the osc grid means it's not oscillating. The amount of negative voltage on the grid is determined by the amount of feedback in the oscillator circuit. If you wanted to check the osc look at the output with a scope at the mixer tube. I'm not quite sure what the 6N7 plays in the osc output without making my hair smoke. Certainly having the plate and screen voltages up where they need to be is very important. More gain= more output.
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
