12-12-2020, 09:27 PM
The 16B code 121 uses a tone control that adds .003mfd at each position to the right it clicks. The first position open with no connections to the caps. There is a pretty drastic difference between the 1st and 2nd positions. 1st is very bright and 2nd is kinda muffled. It's a bit of a pain to take the tone switch apart to change the value of the caps so by adding a resistor in series with the 1st .003 cap you can lessen the effect of the 2nd position. I ended up using a 120K resistor. Makes a smoother transition between the 1st and 2nd positions doesn't sound anywhere as near as muffled.
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
