We found this circuit with SCRs and unijunction in a Radio Electronics magazine from June 1969. The SCRs must be in accordance with the controlled incandescent lamp. The circuit is powered by DC.
Quadrature Generator for Transistor and SCR Testing This circuit was found in US 1980s...
This circuit, with output currents up to 500 mA, can stabilize or regulate the output voltage of a...
This circuit that uses only transistors that are still common was found in a 1995 documentation. The TIP41...