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201X Shadow Meter not deflecting
#8

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

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


Messages In This Thread
201X Shadow Meter not deflecting - by Patrick - 05-26-2018, 10:13 AM
RE: 201X Shadow Meter not deflecting - by morzh - 05-26-2018, 11:07 AM
RE: 201X Shadow Meter not deflecting - by Patrick - 05-26-2018, 11:11 AM
RE: 201X Shadow Meter not deflecting - by KCMike - 05-26-2018, 11:29 AM
RE: 201X Shadow Meter not deflecting - by Patrick - 05-26-2018, 12:28 PM
RE: 201X Shadow Meter not deflecting - by Patrick - 05-26-2018, 03:12 PM
RE: 201X Shadow Meter not deflecting - by Radioroslyn - 05-27-2018, 05:12 PM



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