This circuit is from a 1980s Motorola documentation. The circuit can be made with modern equivalent components. The original circuit is for the 115 Vac (110 V) grid and has two settings.
This circuit recognizes a tone by its frequency triggering a relay. The LC circuit determines the...
This circuit consists of a solid state doubler that doubles the supply voltage Ve between 5 and 15...
This circuit was found in the used integrated circuit manufacturer's manual. The table beside the...