This bench circuit was found in Radio Electronics magazine from June 1958. The circuit does not have an external power supply. The circuit generates signals from 12 Hz to 180 kHz in 4 bands.
The thermistor used in this circuit must have a resistance at room temperature between 10 and...
This circuit is intend to be used with low impedance transducers like magnetic pick-ups for...
The interesting circuit shown in the figure can have its gain digitally controlled and have two...