[morzh]

Bob,

Thanks. Not a bad idea.




Terry,

I am not about to convert anything, but the circuit relied on a wrong resistor so they altered it so it is not one of anything you could find. I told you before in Kutztown.
They converted from an original 121 circuit (where the tone CTL was from the pot's tap) to the 3x0.0033uF from the 1st Audio plate. While having to work around the no-tap pot.


Now I am leaving the 3x0.0033uF tone Ctl from the 1st Audio plate in place. I just want to re-create a correct, hopefully the last one, circuit that is in service bulletins. They already have the 330kOhm resistor in parallel with the pot through a 10nF capacitor to the top pot pin.
The PDF sch you have (not the bulletin) is the same as the sch the library has (or maybe you gave the link to it), so I think I am going to follow that one.