This electronic defense was found in the 1990 special issue of Radio Electronics Experimenter magazine. A few hundred volts is generated.
This circuit is suggested by Texas Instruments and can be used on an assembly line to drive an...
In the figure we have a interfacing circuit of TTL logic as CMOS logic using a 6N139 optical...
This alarm with sensors in series and parallel was found in the 1995 Encyclopedia of Electronic...