This high voltage power supply for gas laser tubes was found in the Radio Electronics magazine special edition of 1990. The circuit consists of an inverter with voltage multiplier.
This ultra-low distortion driver was found in 80's Analog Devices documentation. The circuit has a...
This second-order filter was found in a documentation from the 90's. It can be implemented with...
This circuit goes into operation producing a sound on a small speaker when the supply voltage...