This circuit converts 12 V to 127Vac to power small electronics in the car. It was found in the 1993 edition of the Electronics Experimenter Handbook.
In the figure we have the typical circuit of a Baxandall tone control applied to an operational...
This circuit makes use of older operational amplifiers, but can be designed on the basis of modern...
This circuit that can be assembled in an “aspirin box” was found in the Radio Electronics magazine of...