This circuit is from an Electronics World of 1967. The circuit slows down the activation of a headlight. The capacitor determines the delay time.
This simple circuit, found in American documentation, uses only one relay that locks when any of...
This circuit is from an old publication from the 1970s. It uses transistors and germanium diodes but...
This circuit was found in a Popular Electronics from the 90s. Its purpose is to disable the output...