This circuit was found in American documentation from the 90's. The transformer is of the high voltage type for old light advertisements.
This is one of the channels of an amplifier suggested by Westinghouse in 1970s documentation. The circuit...
Suggested by General Electric in 1967 this circuit generates a single pulse when receiving a light signal...
This amplifier stage has an input impedance of around 180k and a very low output impedance. The...