This two-transistor regenerative switch works as an excellent trigger for SCRs and other devices that need sharp pulses. The circuit is from an old documentation.
This sensor was published in Radio Electronics magazine in April 1962. The two-transistor circuit...
Another of the many similar configurations we have in this section. This one is from a Radio...
This circuit like the previous one is intended for 24V x 3W solenoids being connected from the...