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 circuit makes use of an operational amplifier from the 80's. The circuit can be implemented with...
When the power is cut off, this circuit keeps the flashlight on for a while, allowing it to be...
Using the CK722 this directional photometer was published in Radio Electronics magazine in July...