[sdiy] TL07x

[TIm Daugard]

> I don't use TL074s or quads myself. Main reason is the wacky layout, two
facing one way, two the other, upside down power supply (ok I could turn the
chip 180). More often

And this is why I like the TL074. Power and (+) biased at the center of the IC.
the (-) inputs and outputs at the edge. Feedback loop components fit with out
interefering with the other opamps. The outputs at the edge of the chip making
it easy to troubleshoot and run output connections to other points.

I absolutely hate the TL072 output (7) next to V+ supply pin (8). It makes it
too easy to short the output to the positive supply.

Tim Daugard