> ...When I rotate C31 it brings the analog meter needle to zero (1st zero
> point"), then as I continue it rises a little bit and then returns to zero
> ("2nd zero point"). If I continue it then starts to rise continuously. I'm
> stumped as to where I'm supposed to set it.
Set it to the middle of either of the two zero points. Either represents
the same capacitance.
73,
Lyle KK7P