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Old 24th March 2003, 05:14 PM   #1
bshover is offline bshover  United States
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Default Simple Guitar Amp

Hello,

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
Ben
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Old 25th March 2003, 01:02 AM   #2
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http://www.ax84.com/

http://www.ax84.com/p1.html
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Old 25th March 2003, 02:50 AM   #3
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Default Simple Guitar Amp

bshover,

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: http://www.diystompboxes.com/pedals/index2.html )

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

Sean
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Old 25th March 2003, 01:12 PM   #4
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Default Solid State simple guitar amp

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

http://sound.westhost.com/project27b.htm

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!)
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Old 25th March 2003, 09:39 PM   #5
bshover is offline bshover  United States
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I'm from the indy area, mooresville. Thank you for your help. we might contact you for help on this project.
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Old 26th December 2013, 02:33 PM   #6
xaidi is offline xaidi  Pakistan
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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
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Old 26th December 2013, 02:45 PM   #7
xaidi is offline xaidi  Pakistan
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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 box...lol
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