> > I've never found a 723 datasheet that gives a different values for > > either reference. > >
Nor have I > The one I had to replace on my Nicolet oscilloscope was made by > Lambda. I don't recall the reference voltage but I did have to change > the feedback resistors to get it to work. I seem to remember that Lambda used a semi-custom IC that was the same as a 723 in pinout and function, but had a different reference voltage. Whether this was simply to make you get spares from them or for some actually useful reason I don't know. Was the failed IC marked '723' or some house number? -tony
