[time-nuts] HP5065 - Some OP-Amp, FB and Teflon ...

[Ulf Kylenfall]

Corby,
Thanks for the information. I was not aware of the relocated resistor.
Yes, it is the DC feed-throughs.
Any thaughts on a possible replacement for OPA111?
I have also duplicated the revised A7 AC-Amplifier boardusing film capacitors for the notch filters and modernOP-Amps. Since I have one old A7 board as spare, I caneasily compare the performance.
BR
Ulf Kylenfall - SM6GXV