This trigger uses two switching transistors that can still be found with some ease. The circuit is from an old documentation and its purpose is to speed up the switching of logic circuits.
This circuit activates an incandescent garden, balcony or showcase lamp when it gets dark, turning it...
This circuit is from an old publication of 1972 but can be mounted with BC548 transistors for 12 V...
This circuit is intended for the testing of junction FETs, providing several reading options...