Found in 1967 General Electric documentation, this circuit is intended for the control of electroluminescent panels used at the time, Valid as a reference for restoration.
A bridge with greater sensitivity and, therefore, lower consumption for the microcontroller...
LTC7841 PolyPhase® Synchronized Boost Controllers Mouser Announces Analog Devices LTC7841...
This sinusoidal oscillator was found in Radio Electronics in 1989. It uses a 741, but other...