Audio Amplifier Volume Control Circuit

A great sounding lm386 audio amplifier.

Audio amplifier volume control circuit. If you are tired of adjusting the volume with a normal volume. So in this project i am going to show you how to build your digital volume controller with the ic pt2258 and interface it with an arduino to control the volume of an amplifier circuit you can also check various audio related circuits here including vu meter. The electronic potentiometer for digital volume control circuit is composed of two equal sections which have a total resistance of 15 kω each. To increase or decrease the volume of the amplifier the.

How to add a volume control to your all audio amplifier duration. Now you can control the bass treble and volume by rotating three potentiometer on the circuit. Now that you ve seen the bare minimum of what it takes to make an audio amplifier with the lm386 lets build a higher fidelity version with an adjustable gain control. The circuit below is taken from the datasheet and shows the external components required for constructing a mono channel audio amplifier with lm386.

The number of steps can be increased to say 64 by adding four switches and resistors. 336 28 the present arrangement relates generally to automatic volume control avc or gain control agc circuits and more particularly to an automatic volume control circuit for a transistor amplifier operating in the audio frequency range. I suggest this is the remote and touch volume controls circuit. We only limit the sum of the feedback.

An external 10k potentiometer at the input is used to control the volume of the output speaker. 40w transistor audio amplifier circuit with pc b. Most of the component values in this circuit aren t critical. Circuit description and working of 10 watt audio amplifier circuit with volume control.

The circuit of 10 watt audio amplifier is shown in figure 1 designed around amplifier ic lm1875 and few other passive components like resistor capacitor variable resistor and loudspeaker. Rk electronics project 80 525 views. The circuit proposed here is based on the second and features 16 steps in its basic form. Because in the basic amplifier circuit high magnification is more important than high clarity.

You can adjust the volume by pressing the touch. A potentiometer does not control the gain of the signal but it forms a voltage divider and that is why the input signal gets attenuated. For a stereo audio amplifier we need two of this circuit. Remote and touch volume control circuit by mc3340p.

Remote and touch volume control circuit using mc3340p. Tube audio amplifier on breadboard using mystery tube duration.