GingerGiant:
MarkT:
IC1, the one on the right has no feedback network and there is no DC bias to pin 3 (non-inverting input). Both of those are
show-stoppers.That's actually part of the design. I was looking up op amps on wikipedia when I stumbled across the zero level detector.
Where's the link to this zero-level detector? It looks suspect to me - certainly the lack of DC bias to the input is a no-no.
The 741 isn't used very much these days, it walks with a zimmer-frame compared to modern op-amps!