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.
This circuit is from Radio Electronics from March 1977. The integrated circuit is from that time...
This 1.2 to 32 V x 3 A regulator was found in an 80's EDN. The power components must be equipped...
This power control from Motorola's 1971 SCR Power Control Fudamentals can control full wave loads...