Found in Radio Electronics from the 90s, this circuit is intended for analog TV applications of the time. The transistor used as well as the module are uncommon components today.
We found this relaxation circuit with diac in an opto-electronic documentation with diac....
Found in American documentation from the 90s, this circuit can be implemented with modern...
In the figure we have a very simple trigger circuit for an SCR that powers a 12 V lamp whose...