e-licktronic Forum

Hi,

Finished the build and have a problem setting 130mV.

With a 4558, I get -144mV at the test point and with TL072 I get about 0mv...
Trimmer has marginal effect.

I saw elsewhere on the forum a recommendation to change trimmer to 100k, will that do the trick?

MINUS 144mV for an AC voltage ?

I did not measure AC....

I managed to get 130mV RMS now after switching to AC...