[sdiy] PCB op-amp layout - 2x2 or 1x4

[David G Dixon]

> What I've seen on some boards is having all/most ICs lined up 
> in the middle of the board and the power traces going between 
> them. Then you have separate (sub)circuits on the left and 
> right side. This technique is of course especially useful if 
> you have two copies of the same circuit on one board, so you 
> can essentially mirror the circuit on either side.

This is exactly what I had to undo in my dual VCA to eliminate bleed,
although this is exactly how I do my Korgasmatron filter boards.