Found in a 1964 Electronic Design, this circuit for 300 mA loads uses components from that period. It produces a rapid load control trigger.
This triac circuit was found in the July 1995 Electronics Now magazine. The triac is based on the...
We found this circuit in a 90s Electronic Design. The circuit is based on a quadruple operational...
The transistor may be any general purpose, but the integrated transistor is not common today....