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.
Measuring capacitances and resistance this simple instrument was found in Radio Electronics...
The LM143 integrated circuit is a high voltage operational amplifier from National Semiconductor that is...
We found this circuit in the November 1985 issue of Radio Electronics magazine. It uses TTL...