Tube Tone Control Schematic. The amplifier stage consists of tl072 non inverting amplifier. Using an early in the circuit tone control to remove fizz and ice pick will sometimes smother the tone because so much harmonic content is lost.
Yes virginia everything is a compromise. The frequency response is not as good as with using an opamp but it is still acceptable provided you just want a way to boost bass treble and mid frequencies. Resistor r3 is connected in between the pins 1 and 2 to provide the feedback to the operational amplifier.
Here s a simple 3 band tone control circuit with 1 transistor instead of using opamps.
Yes virginia everything is a compromise. The audio tone control circuit mainly consists of two sections one is amplifier and other is passive tone control circuit. Yes virginia everything is a compromise. The circuit discussed here is an example of the baxandall tone control circuit illustrated in fig.