Found in a 1967 General Electric SCR manual, this circuit triggers in case of excess current, causing the fuse to blow or a circuit breaker to open. The components are from the era.
This radio for the AM band has the traditional superheterodyne configuration with several...
Found in Linear Technology documentation from the 1980s, this generator uses integrated circuits...
This is one of the channels of an amplifier suggested by Westinghouse in 1970s documentation. The circuit...