The shock is 2.5mH for frequencies between 3 and 30MHz. C is 1nF, R is 47k and the transistor can be of any type of general use. M is 0-1 mA and the supply is made with voltages from 3 to 6 V.
In the figure we have a security system consisting of a sophisticated alarm found in a 90s edition...
Found in an Electronic World, this circuit is designed to control solenoids up to 5 A. The circuit...
This circuit is from an 80's American documentation. The circuit uses components of the time which...