This tone control was obtained in the Audio Handbook of the National Semiconductor of 1977. The circuit controls the signals of medium frequencies in a wide dynamic range as shown in the diagram.
This circuit uses an operational that is not currently common. We found it in an old American...
This circuit uses two transistors to obtain low frequency sinusoidal signals. We found it in a...
This amplifier can be powered with voltages between 2 and 5 V with power up to 100 mW. The minimum...