We found this circuit in a Popular Electronics of the 90s. The circuit can be easily mounted today, as the components are common. The SCR can be the TIC106.
Found in American documentation from the 1970s, this circuit can be designed based on a modern SCR,...
This circuit can be used with the 27 MHz transmitter from the previous circuit in a remote-control system...
This circuit was obtained in a 1991 Electronics Handbook. The publication no longer exists, but...