This circuit is from a 1968 Electronic Design. The circuit uses transistors of the time that can be replaced with modern equivalents. More stages can be used to get higher tension.
This 1987 circuit uses a common ignition coil to generate high voltage to power a fluorescent lamp that...
The sound of drums can be obtained with these two touch-triggered double-T oscillators. The...
This high-precision circuit was found in documentation from the 1990s. The integrated circuit is...