This circuit for effects on music synthesizers was found in the May 1983 issue of Radio Electronics magazine. The circuit requires a 15 V power supply.
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...