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.
Found in a 1980s American documentation, this circuit appears with variations elsewhere in this...
May 2017 - This proximity and touch controller from Azoteq can control 12 mutual channels and can...
This is an old 1988 circuit consisting of a timer or time control for exposing silk-screen arrays. The...