The transistor used in this circuit is uncommon today. AC124 or equivalent such as AC188K and 2N2431 can be used. The circuit is from the 80's and makes use of transformers.
This circuit generates a single pulse with duration given by the capacitor. The circuit can be...
We found this circuit in an American 1980s documentation, but it can be implemented with modern...
This interesting 80's logic circuit consists of a gate that can be programmed according to the...