In this instructable, we are going to make a simple audio amplifier using lm386. LM386 is low voltage audio amplifier and gain range from 20 to 200. It's a 8-pin ic.

List of components:

1. Breadboard

2. LM386

3. 8 Ω speaker

4. 10k pot

5. 220 uF capacitor

6. 9-volt battery with snip connector

7. Connecting wires

Step 1: Circuit Diagram

In this circuit our gain is limited to 20 (26 dB). The 10k pot is used for adjusting the volume.

The circuit is self-explanatory

Feel free to comment.

<p>What about 4ohms speakers?</p>
<p>I love this, thanks for posting it. I happen to have two 6 Ohm 6W speakers. Could this circut be modified to use one or both of them?</p>
<p>You can use one of them.</p>
<p>Great circuit project. Things like this make great tutorials for an introduction to circuit for beginners.</p>
<p>Thanks mate</p>

About This Instructable




Bio: Loves electronics, science fascinates me
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