Found in an American publication in 1967, this circuit generates pulses for the triggering of a LASER of the time. The circuit receives a signal in the form of a ramp producing a rectangular signal.
This circuit is from a 1995 technical documentation. The transistor can be a BC558 and the sensor...
Found in a Popular Electronics from the 90s, this circuit checks the presence of voltage on a...
The critical component of this amplifier is the output transformer. We found the circuit in an old...