Found in documentation from the 1970s, this circuit for resistive loads uses a trigger transformer. The components support modern equivalents.
We found this circuit in a Popular Electronics of the 80s. The circuit can be made with almost any...
Found in documentation from the 90's this circuit is for low currents. The transistor can be...
This circuit, from 1990 documentation, can be assembled with BC558 transistors for Q1 and Q2,...