Somewhere or another there should be a compromise that makes you happy... you will, however, never achieve true safety as long as you are alive.
I am far more aware of this than you might suspect, but I do think that it is a very good idea to know the risks involved. An optoisolator is vanishingly unlikely to fail shorted, in that they are specifically designed with this failure mode in mind. A resistor is likely to fail open, but failing shorted isn't unheard of. See also designs for wrist straps. I won't be trusting a single resistor to sit between me and a fire that could kill people. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
