Found in a 1965 Electronic Design, this circuit divides the frequency of a cascaded signal using unijunction transistors. The bipolar transistor supports an equivalent. The shock is 470 mH.
This circuit was obtained from an American 80's documentation. It can be implemented with modern...
We give in the figure a different application of 4013, which can also be used as monostable. In common...
We found this adapter in a 1970s American documentation on instrumentation. It is suitable for analog...