This timer was found in English documentation from the 80's. The integrated circuit is common nowadays and the MOSFET admits equivalent according to the controlled load.
When the equipment powered by the SO1 socket is turned on, the SO2 socket is automatically...
This microcircuit that fits in an aspirin box was published in Radio Electronics magazine in...
This circuit was found in an American publication from the 50's. The transistors are made of...