This circuit was obtained from an 80s factory manual. The integrated circuits used are uncommon today, but the diagram is for reference only.
This circuit was suggested by Motorola in a 1980s publication. It is based on a PUT that is not a...
The purpose of this circuit is to control magnetic door locks activated by the power grid. The...
We found this circuit in an old English documentation from 1979. The circuit is very sensitive, because...