This Kirlian machine circuit uses a car ignition coil. The circuit is from a Radio Electronics from May 1986. It is mentioned in an article that teaches how to obtain photographs.
The UAA180 integrated circuit is no longer manufactured, but if the reader finds one in a scrap...
This circuit is from an old National Semiconductor component manual. The circuit can be...
This circuit makes use of a diac to stop the activation of a sensitive reed relay 1 mA. The trip...