This circuit was found in an English documentation from the 90s. It uses a PLL CMOS 4046 and is powered by a 9 V battery. The sensors are two electrodes that must be held by the person.
To work with the above circuits, this decoder provides an output of 10. The circuit is from an...
Another version of the many symmetrical power supplies we have in this section. This one is from a...
Incandescent lamps of up to a few amps can be placed to flash with this circuit. The frequency depends...