Another question, if i replace the that340 with k170/j74, are there some resistors should also be changed or keep all other components the same?
Thanks for answer.😀
Does someone know if the compensation capacitor is less than 2pf(1.5pf) for 20x gain, will it cause instability of the amp?
I have bought 2pf capacitors with 0.5pf tolerance and the value measured is 1.5pf😂.
Thanks a lot.