[sdiy] A little OT, Begging a hand

[David G. Dixon]

> I disagree with this. V0 is a measured voltage.  It is assumed to be
> measured with a high impedance meter.  Thus it has no effect on the
> currents and voltages in the circuit.  Therefore it shouldn't appear in
> the
> equations.  It should only appear after the calculation is finished as the
> voltage divider equation involving the already determined current through
> R8.

I thought they were all measured voltages!  You can't solve the problem
otherwise.