audioguru, every suggestion is welcome .. here is the list of the opamps I can get here so you might recommend better one then the one on the example
739, 741, 747, 748,
CA3054
ICL7650SCPD,
L272, L272M,
LM10CN, LM13700N, LM201AN, LM224N, LM258N, LM2902N, LM2904N, LM301AN, LM308N, LM318N08, LM324D, LM324N, LM348N, LM349N, LM358D, LM358N, LM386M, LM3900N, LM392N, LM4250CN, LM725CN, LM776CN, LM833N, LM837N,
LP324N,
LT1014CN,
M5216L, M5238P
MC1458D, MC1458N, MC1558N, MC33078N, MC4558CN,
NE5532AN, NE5532N, NE5534AN, NE5534N,
NJM4558L,
RC4136N, RC4559N,
TAA981,
TDA1029
that's about it .. that is full collection of opamps I can get in local elco stores
, yes I know it is patetic but .. with most suppliers unwilling to ship to this country, I have to make due with what I can find locally.
Anyhow, thank you for looking at the schematic, if you believe you see better part for the job, please, point me to it, and if you believe this schematic will "get the job done" please tell me so, also if you think otherwise, a nudge in right direction will help
... I do suck at analog but I can read
and I'm not lazy