This is one of the channels of an amplifier suggested by Westinghouse in 1970s documentation. The circuit uses components from the era and no information about the transformer is given.
Found in 1980s Electronic Engineering, this circuit uses common phototransistors as sensors. The...
November 2016 - Torex's new XCL219 and 220 DC-DC converters are available from Mouser Electronics...
This circuit can be used to control loads up to 500 mA from the outputs of microcontrollers such...