This power supply uses a single-winding transformer. We found it in July 1984 Radio Electronics magazine. The integrated circuit must be equipped with a heat sink.
This circuit converts BCD inputs to analog voltages. The operational amplifier must be powered...
This circuit is suitable for the calibration of old analog oscilloscopes. It was found in...
This is the circuit of a hearing aid amplifier manufactured by Sony in the 1960s. The circuit was...