> looks good, may not need it now, but will probably try it anyways.

Note that the op amps are running off +/- 8V, which I had
available from a MAX232 in the circuit. The output has
around +/-6V swing (hence the diodes to clip it). You
shouldn't have too much difficulty getting it to go using a
5V rail to get noise that covers the PIC pin's thresholds. I
chose not to square up the noise before the PIC saw it as
the variable rise times are not undesirable

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