[sdiy] Complementary transistors and other questions

[JH.]

> Another question is about opamps, can I use LP324 in place of LM324? I
> know people say the 324 sucks in many places, but is ok for LFO's and
> stuff. The LP324 seems to my untrained eye to be only a better specs /
> lower power LM324, but theres probably a catch.


Ha ha, I accidentially got a lot of these LP324's when I built my PS3200
clone.

And the PS3200 depends on some of the LM324's features, like - don't
laugh! -
a certain amount of *speed*.

Yes, the LP324 is much slower than the LM324. Had to desolder a lof of them
from very cramped pcbs.

JH.