The complete circuit diagram for Dual Channel Pre-Amplifier consists of two mono circuits combined to form one stereo circuit as shown in the image below. As you can see the left channel audio, and ...

Resistor R7 gives the isolation between Bass and Treble. To operate the circuit, connect the components as per the circuit diagram, give +15v and -15v supply to TL072 opamp and give audio input from ...

To control Bass, treble and volume of sound signal before giving it to power amplifier, we have to modify the overall frequency response. Also we did not need any external voltage to operate this. ...

This bass and treble controller circuit is based on the classic Baxandall tone control circuitry and provides a maximum cut and boost of around 10dB at 10kHz and 50Hz. ... The potentiometers should be ...

This is simple but powerful bass, treble, volume control is made by General Op-Amp IC LM741. The input voltage is 12V, but it will also work with 9V and 6V. This has inbuilt pre-amplifier also. Left ...

You can use the power amplifier circuit given here for testing or another higher-output power amplifier. Vary VR1 slowly until a clear and distortion-free amplified output is obtained. If the sound ...