Found in an Electronics World of 1968 this circuit can use any SCR and diodes depending on the load. The circuit is full wave and the unijunction can be 2N2646.
This 1989 circuit activates a protection relay if one or two phases are missing from a three-phase...
This simple TTL electronic dice uses common anode displays. The circuit is from a March 1975 Radio...
This non-pulse alarm can be used as an event detector or even an alarm. The circuit can also be...