This synthesized generator circuit was found in an article in October 1980 Radio Electronics magazine. The article taught how to assemble it. The circuit generates signals from 1/100 Hz to 1 MHz.
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...