05-11-2011, 08:18 PM
Go head and switch your leads around. Another way you can check it is to measure the dc voltage from grid 1 (closest to the cathode) and the cathode. Use a VTVM or a FET meter with an input impedance of 10meg ohms. With the + on the grid and the - on the cathode if the osc is running you will see some negative voltage like a volt or 2.
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
