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.
The integrated circuit used in this filter is like to a double 741 and must be powered by a...
This Hartley telegraphy oscillator operates with the transmitter signal generating a tone in a...
This circuit, which appears at other points on this site, can be designed with both 4011 and 4001...