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bshover 24th March 2003 05:14 PM

Simple Guitar Amp

I am a high school physics student. For a physics project my partner and I decided to build a basic guitar amplifier. We are looking for something relatively cheap. We have a collection of old used speakers and would probably use one of them for this project. If any of you know of a schematic or have a schematic that would help us it would be greatly appreciated.

Thank You

rickcr42 25th March 2003 01:02 AM

TucsonSean 25th March 2003 02:50 AM

Simple Guitar Amp

What part of Indiana are you from? I did a similar thing when I was in high school physics in Indiana.

For a simple guitar amp, I would suggest using something like a power op amp (LM1875) for the output stage and find a simple preamp circuit (recommend the JFET mu amp for tube like sound and simplicity of construction) such as the Booster 2.5 located here: )

These are fairly easy circuits. If you need any further help just let me know.


PhilW 25th March 2003 01:12 PM

Solid State simple guitar amp
We have used this pre-amp stage from Rod Elliot's excellent web site:

and used an lm1875 as the power amp - a sort of gainclone (see appropriate thread on these pages).

It is really quite versatile and not too difficult to build (one for me and one each for my 3 children!)

bshover 25th March 2003 09:39 PM

I'm from the indy area, mooresville. Thank you for your help. we might contact you for help on this project.

xaidi 26th December 2013 02:33 PM

Hey there i also built a simple and best guitar amp and that is still working fine. I got the circuit with details from STP website here is its link:
Sam Technology Professionals: Build a Guitar Amplifier Easily
Hope this helps you

xaidi 26th December 2013 02:45 PM

And at this link the amp circuit you'll get has very simple and common components like lm386 you can build it very easily. This amp doesn't need any pre-amp for amplifying the guitar what ever is your guitar pickup
Sam Technology Professionals: Build a Guitar Amplifier Easily
Well i have tried it with piezo-pickup of semi-acoustic guitar and also i have used it with electric guitars both worked well. But i wasn't having a good box like them. I used a plastic

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