We found this circuit in the May 1972 issue of Radio Electronics magazine. Its purpose is to teach logic using integrated circuits of the TTL family. The 5 V power supply is included.
This traditional configuration is from a 1976 publication, showing that nothing has changed since...
This circuit is from a Radio Electronics from February 1971. The SCR is load controlled and the...
This timer triggers high-powered loads powered by the power grid. Times are given by C1 and the...