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.
This tunnel diode circuit was found in American documentation from 1966. The tunnel diode is the...
This simple blinker for incandescent lamp was obtained from an English documentation. The power...
This circuit is ideal for the design of interfaces and shields, as it allows total isolation of...