This UPS circuit was published in the March 1985 issue of Radio Electronics magazine. The components used are still common, although some may be difficult to obtain.
This circuit uses a quadruple operational amplifier of the time. The circuit is from the 70s but...
This circuit consists of a negative ionizer for use in the car. The circuit has a high voltage...
September 2016 – At Mouser Electronics is available audio drivers for the purpose of suitable...