This very high voltage generator for photographing the aura was found in the special edition of Radio Electronics Eerimenter magazine from 1990. The circuit uses a car ignition coil.
This circuit was obtained in a 1960 documentation of General Electric. It is applied in the...
This circuit produces the sound of a motorcycle or an outboard motor. The frequency is adjusted in the...
Another application circuit for the NE567 is shown in the figure. It consists of a decoder for...