/diy/ - Do It Yourself

>>1404302
any diode in the 1N4003 to 1N4007 series would work, in a pinch. does the diode in question still read short both ways when removed from the circuit?

>>1404307
the LMH6611 would be overkill for that, I think, but there are economical and available opamps in the few tens of MHz GBW range that you could either use as a simple diff amp, or assemble three into an instrumentation amp if the offset voltage of a simple diff amp makes for too much inaccuracy for your application