Introduction: Eissa
This was one of the first circuits that got me into making. It's very simple and can be used to amplify audio output (mp3 player, computer, etc.) as well as electric guitars.
Step 1: Eissa
Here is a sketch of the circuit I use. It's not drawn in any traditional sense. But it helped me visualize what I was trying to accomplish.
The 10uf cap marked "optional" is best left out unless you're looking to use this as a guitar amp.
Step 2: Eissa
1-Lay out the circuit on the perfboard.
2-Make a rough guess at how much board you need.
3-Score your board several times with the X-acto knife and break off what you need.
Step 3: Eissa
With everything in place, bend the leads of the components to accommodate soldering.1
Leave the LM386 out of the socket so as not to burn it up with heat (personal experience).2
Solder away!3
Step 4:
Add a power source (9 volt battery) 1
Audio Jack) 2)
and speaker(s) 3)
Step 5: Eissa
Test circuit. 1
Add any last-minute items (on/off switch, LEDs, etc.). 2
Step 6:
Build an encasement.
I am not promoting smoking,
But this is a very easy and compact project box.
Step 7:
Assemble with hot glue ....!

Participated in the
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Participated in the
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Participated in the
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4 Comments
10 years ago on Introduction
I love this simple invention
I will invented
10 years ago on Introduction
I think I am going to make this...
Reply 10 years ago on Introduction
You will love this invention is easy
10 years ago on Introduction
> Here is a sketch of the circuit I use. It's not drawn in any traditional sense
That is VERY traditional - it is the way we HAD to do it in the old days - see? you really don't NEED a computer (they are nice to have though ;-))
That's a nice neat instructable - well done.