This timer with two unijunction transistors and one SCR was found in an American documentation from 1964. The unijunction transistors could be the 2N2646.
This is the traditional configuration of a 6 or 12 V source with 7806 or 7812 integrated circuits, for a...
Found in an Electronic Design from the 90s, this circuit uses high voltage operationals of the...
This reaper or signal limiter can be used to convert a sinusoidal signal into a square. The...