Found in a Popular Electronics from the 90s, this circuit applies to flashes with xenon lamps. The transistor admits equivalent and the phototransistor is of the Darlington type.
This LCD driver circuit uses a common component today. The circuit is from 90's documentation....
The presented circuit is used in Power supply to increase the voltage output. The voltage output...
This circuit was found in a 1967 General Electric manual. It is intended for the control of high...