[sdiy] A little OT, Begging a hand

[Veronica Merryfield]

On 2011-02-08, at 2:48 PM, Ian Fritz wrote:

> At 03:03 PM 2/8/2011, David G. Dixon wrote:
> 
> Oh, and I only see three nodes.  (The output point isn't a node, at least not in my way of thinking, because there is no current into the output terminal.  The current thru R8 is the same as that coming out of the node immediately to its left, ie thru R1-was-R6. V0 - V3 is given by that current times R8.)
> 
> But my delta-wye argument is much more elegant.

The output becomes a node if V1 or V2 are set OC. I think as Tim pointed out that this changes the circuit and therefore the equations.