This circuit was found in a 1970s General Electric documentation. This circuit already used an emitting LED. The circuit operates at frequencies from 50 Hz to 50 kHz with short pulses
Found on a 1965 Radio Electronics, this circuit fires a signal xenon lamp applied to the SCR from...
After a power cut, the arrival of power can be accompanied by dangerous transients and outbreaks for...
This solar powered circuit was found in a 1991 documentation. The transistor is a general purpose...