04-20-2022, 03:01 AM
At 100 ohms that sets the filament string to operate at 115v. If you increase, it to 166 ohms that will set filament string at 125v. Dissipation is 3.75w so I would use a 10w. Closest common value would be 160 or 170 ohms. Either would work fine. Don't know that I'd bother to change C2 or C12 to a different type.
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
