This circuit activates a relay after a time given by C1 and R1. The circuit is from a Radio Electronics from December 1974. The relay voltage is the same as that used in the power supply.
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...