This sensitive two-transistor circuit was found in the June 1965 Radio Electronics magazine. The circuit has low drift and uses an analog instrument. The input resistance is high.
Found in old documentation for radio amateurs, this circuit is intended to excite a MOSFET on the...
The lie detector we presented was created by a professional detective and found in a 1982...
This circuit allows to obtain an output pulse independent, in duration, of the action time on...