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 circuit fires when the light intensity on the sensor drops below a certain level. The trigger...
This circuit consists of a decoder for remote control that allows the activation of 10 channels based...
This circuit is used to test PNP or NPN transistors giving the status indication through LEDs. The...