This remote control or light-beam operated switch was found in the June 1970 Radio Electronics magazine. Sensitivity is set at R4.
Found in a 1964 Electronic Design, this circuit generates 1 A pulses with durations from 100 us to...
The original version of this circuit was found in an old English publication that comes to...
This circuit was found in a French publication of 1982. The operational can be any with FET as the...