This protection circuit for symmetrical 28 V power sources was found in a 1968 EEE documentation. The circuit can be adapted to use modern equivalent components.
This circuit from an old English publication from 1978 generates pulses of very short duration at a rate...
This simple circuit triggers when light strikes the sensor. The relay is of the sensitive type with a...
This circuit was found in the July 1991 issue of Radio Electronics magazine. It converts a binary...