Arthur Dent wrote: > jimlux-"And you can probably still buy 709 and 714 op-amps.." > > I'm old enough to know that it is 741 op-amps, not 714. ;-) > Ooops.. it was early in the morning And for the life of me, I cannot remember the number of the comparator in the 7xx series.. contemporaneous with the 709.