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 circuit was found in the April 1993 Electronics Now magazine. With it, it is possible to...
We found this circuit in the February 1983 issue of Radio Electronics magazine. The 4-digit...
This circuit was found in Philips documentation from 1967. The circuit uses components of the...