This circuit is for 12 V batteries but can be used with batteries of other voltages by changing the zener diode. The trigger point is adjusted by R1. The operating system accepts equivalents.
This circuit is from a Fairchild digital clock module shown in the March 1977 issue of Radio...
Found in an Electronic Design from the 90s, this circuit modifies the phase of a signal in 8...
Any TTL inverter can be used in this circuit. We found it in documentation from the 80s, but it...