In reply to Ian McLean. the are logarithmic
HI, I have problem with my lm386 circuit build. With the regular gain of 20 it works fine, tho its really quiet. As soon as I put the bypass capacitor between the pins 1 and 8 though, I get a ter...
Hi Circuit Basics. I am a relative newbie to electronics. I need a small amp to act as the output stage for a regenerative valve radio receiver I have just built. This looks ideal. Can you tell m...
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In reply to Sabu. could you please list all the components that y...
Can you build a more powerful stereo amplifier with at least 4 microphone inputs and with ability to play mp3 music files from a pen drive. There must a mixing circuit to mix the pen drive music ...
The idea is that they share the same audio signal but have a different volume, controlled by a multiple channel digital potentiometer (AD5204/6) through an Arduino.
I would not call this a "bass boost". Instead it is a high tone control. Also I found that the 10 K variable resistor needs a limit or it will kill the audio. On my circuit with 8 VDC the minimum...
In reply to Michael. Thank you for clarifying the doubt with caps...
Hi, Thank you for the detailed article. I am new to audio system and did a lot of research until i came across this article. I am having issues with my AVR where my onboard subwoofer amp has died...
In reply to Circuit Basics. It would be better to connect them in s...
In reply to tom. Actually, you want caps at both pins 2 and 3, bu...
In reply to Stephan. Its a mistake. That capacitor *should* be serv...
Hi, great article. I have a use for just this circuit, but didn't have time to review all of the previous comments. Has somebody made this into a board that I can purchase. I have the audio out, ...
In reply to Circuit Basics. The 470p on the schematic is shorted out...
I'm making a guitar amplifier out of this. For guitar, do I connect the speakers directly or do I need a power amp?
I want video tutorial of it. When is it realeasing?
you have written "A 470 pF capacitor between the positive input signal and ground, which filters radio interference picked up by the audio input wires." ie 3 and 4 and it works like magic. but in...
thank its working me
I have 1 questions…. 1. Can I use 90k pot ?https://dinislam630.blogspot.com/
Did this circuit and worked more than 100%. thumbs up bro.
What happens when you wire Pin 7 to either Pins 2 or 3? Will that result in feedback?
I have completed the first example, and I only have a few capacitors I can use, I've got the 0.1 uf but when using either 680 or 390uf it sounds fine(some distortion) with music, but voice is awf...
In reply to Circuit Basics. Dear Sir, What will be the maximum power...
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On the last schematic with the bass boost, the potentiometer for the bass boost has one pin NOT connected. Should that pin be connected to GND?
hello, does anyone have a simulated circuit of this? if so, please send it to me by email: 3anood.ttm@gmail.com
Good article. However, in my prototype, the bass boost circuit doesn't have much influence. As the schematic shown, I connect a 10K pot and a 33nf cap between LM386 pin1 and pin5, once I adjust t...
Thanks for this, most video's are not visually informative on youtube. Nice work.
First of all thank you for this great tutorial. Nice and easy to follow. Inspired by this project, I have built a stereo amplifier using two LM386. Basically speaking, I have doubled the schemati...
In reply to Me. Thank you so much. It was my brand new LM386 of c...
Hi Everybody, I have tried and tried and tried to build this amp in every different way. I have spent probably more than 24 hours working on this. I even built the schematic for the "Great soundi...
Hi, I am building an amplifier for 8 Ohm, 80 Watt speakers. I want it to be stereo, as well as to have a subwoofer. My questions are 1) Can it power from 12V power supply, a continuous 80W RMS fo...
This is the best damn guide i've ever followed. the graphics and descriptions. oh man, so well done. and im not even an English speaking dude. a damn swede! Thanks alot. this showed me that i did...
In reply to Steven Scheerlinck. Do you want an analog FM radio ci...
LM386 delivers max 1W, so you will need a more powerful amplifier circuit.
LM386 takes max 12V
Hello. First of all it was veryy amazing to see such an elaborate and simply designed project. Great Job. I'm going to try this and it's gonna be very helpful for me. Can u please tell what kind ...
Hi, Is it possible to get boost mid and boost trebles controls putting more 0.033 μF capacitors and a 10K Ohm potentiometers in series between pins 1 and 5 like you explain the bass boost? best ...
The 470pF cap to eliminate radio noise is excellent. It is also misplaced in the schematic.
In reply to Markus. I made a stereo set today. 2 seperate with sam...
Built this one today, in stereo set (1 for right channel and 1 for left channel). I used the LM386-1 and looking to replace it for the LM386-3. Only negative thing is when I connect the bass boos...
Sir Will you Please give me the Speaker Specification or Give me Which Power rating Speaker is to be Use this circuit like (50 W, 100 W, 150 W like this)
Great little article, thanks. I’ll try that some day. I didn’t quite get which one of the three LM386 models you’re using? BTW the number 386 sure do bring a lot of old memories back. My fi...
Sir I want to use a condenser microphone as my input instead of using audio jack. How can I do it ??
Sir i am also interest to do this circuit, And I need speaker specification In which Rate of Speaker to be work on this circuit with best bass and volume
What is the voltages of the electrolytic capacitors?