05-27-2018, 06:12 PM
Something else you could try is adding a few volts + to the grid of the 37. This would cause the plate to conduct the max current (abt 8ma) thru the tube and deflect the vane. Conversely you could add some - voltage which cause the sm to act as if there's a very strong signal. Would think something around 10vdc or less.
GL
GL
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
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
