mini mk2 osc board

[Ken MacBeth]

Hi, All!I'm considering building a demo oscillator
from the minimoog osc board that came before the ua726
osc board. I see form the schematic taken from Kevin's
Synthfool site that IC1 (741), IC4 and IC6 appear to
have the pin7, what I would expect to be attached to 
positive volts is infact tagged to ground. Is this
correct?
Also can this circuit be driven from +- 12V?
I'd certainly like to give this circuit a shot as I
have now obtained 1k tempcos and I've also got dual
jfets (2n3956). The circuit looks pretty straight
forward, has anyone actally built it? Thanks in
advance for any replies or suggestions, Ken.

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