[time-nuts] sine to square wave circuits - performance data?

[Mark Sims]

Wenzel says an HC device tends to work better than an AC device in squarer applications.  

My calibrator board has a place for the feedback resistor so that I can implement the second LPRO circuit (or add hysteresis to the squarer gate.

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> I find it interesting that a simple 74AC04 performs so well (given enough
input power) compared to even an LT1016.