Portable Guitar Amplifier - DIY
Intro: Portable Guitar Amplifier - DIY
Welcome To "Sam Technology Professionals"
Hi Guys..!!
This is a portable guitar amplifier with some exclusive function. It gives you clean sound, bright & loud sound and distortion guitar sound. Even if you connect a semi acoustic guitar it will work as it do. It is good for high impedance pickups and microphones as well.
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Details :
It is based on two IC "LM386" and some capacitors and resistors. It works fine. Its is easy to build and you can do it easily within 30mins.
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Components Required:
1 - Resistor 10 Ohm
2 - Capacitor 0.047uf [Code = 473J or 473k]
1 - Capacitor 100uf [ Voltage = 25v or 50v]
2 - Capacitor 10uf
1 - Capacitor 220uf [Voltage = 16v or 25v]
2 - IC LM386 [Its a Low Voltage OP Amp]
1 - Small Speaker
1 - Potentiometer 10K Ohm [Linear or Audio But i will prefer audio first]
1 - LED (use it in series with a 100 Ohm resistor)
1 - DC Power Jack [Or you can use a 9v battery clip if you want to fit the battery in it.]
Beside these components a piece of pref-board and box to fit the circuit in are also required.lol
________________________________________
If you have any question then ask me in comments. I promise to reply your every comment.
Build it now..!! Have a wonderful Day..!!
Hi Guys..!!
This is a portable guitar amplifier with some exclusive function. It gives you clean sound, bright & loud sound and distortion guitar sound. Even if you connect a semi acoustic guitar it will work as it do. It is good for high impedance pickups and microphones as well.
________________________________________
Details :
It is based on two IC "LM386" and some capacitors and resistors. It works fine. Its is easy to build and you can do it easily within 30mins.
________________________________________
Components Required:
1 - Resistor 10 Ohm
2 - Capacitor 0.047uf [Code = 473J or 473k]
1 - Capacitor 100uf [ Voltage = 25v or 50v]
2 - Capacitor 10uf
1 - Capacitor 220uf [Voltage = 16v or 25v]
2 - IC LM386 [Its a Low Voltage OP Amp]
1 - Small Speaker
1 - Potentiometer 10K Ohm [Linear or Audio But i will prefer audio first]
1 - LED (use it in series with a 100 Ohm resistor)
1 - DC Power Jack [Or you can use a 9v battery clip if you want to fit the battery in it.]
Beside these components a piece of pref-board and box to fit the circuit in are also required.lol
________________________________________
If you have any question then ask me in comments. I promise to reply your every comment.
Build it now..!! Have a wonderful Day..!!
22 Comments
johney 5 years ago
RuwanthaW 5 years ago
samtechpro 5 years ago
Debadeep Chaudhury 8 years ago
I've made the circuit but there a distortion in the speakers, I can't seem to get rid of. How do I correct it. I'm using a 2.5W, 8Ohms speaker
samtechpro 8 years ago
Darronm1973 7 years ago
samtechpro 7 years ago
I have a better idea to have more ouput power so we can drive larger speaker of about 2.5inches also the schematic is so simple that any one would feel relaxed to build that. I'll share it within two days on my instructables.
And no you should not use AA batteries with 9v supply in order to have 12v. The above circuit and most of the op-amps circuit starts working on 5v. So i think 9v is ok for that you don't need to have 12v special supply. But i would suggest you to keep every suppy because you're gonna need them to test your equipments or you can build your own variable power supply. Have a good day (Y)
samtechpro 8 years ago
A drawing mistake ha s been corrected. You can now build it.
gerry.serafica.1 9 years ago
hi how about if i put it in outlet,220volt? what should i do?
samtechpro 9 years ago
gerry.serafica.1 8 years ago
is there any way or idea,without using adapter.,.
samtechpro 8 years ago
Guii 9 years ago
Why did you connect the output terminal of the left op-amp to the ground?
samtechpro 9 years ago
samtechpro 9 years ago
There is a long note about it on LM386 datasheet. This
is called its bridge mode and it makes the power of output double. Also In this way very low signals of input are easily amplified.
samtechpro 9 years ago
RezLar 10 years ago
If I wanted to add a standard headphone jack so I could plug my phone in would this be hard to do? Also would your design allow for multiple media inputs at once (e.g. phone and guitar)?
Thanks!
samtechpro 10 years ago
You can do it easily. Because there is a very less distortion in the output signals as compared to the normal amp circuits based on lm386. Its sound always have distortion. Well you can easily add a headphone jack. You need to add a little circuit at the output like this one:
http://samtechpro.blogspot.com/2014/03/how-to-use-...
This is the link of my website. It will go directly to the schematic required for your headphone jack. Feel free to go. There are several interesting projects related to audio/musical equipments etc.
RezLar 9 years ago
I just realized I had not replied to this. Thanks for your help! My project turned out pretty well!
samtechpro 10 years ago
If you want to just use it as an amplifier to play mp3 from your cell phone then you can just add a headphone jack at the input without changing the circuit