Step 2: Step Two: Electronics

it's a good idea to test the circuit first out on breadboard if you have it.

note that this circuit is quite stripped down and only makes the guitar's signal an overdriven tone (distortion)
you could add your own version ex: like the little gem amp, but keep in mind you'd have to add potentiometers and there's not much space inside the tin for that

you can use an allegator clip to a guitar wire for testing rather than soldering to the jack before you put it in the tin

cut out a piece of perf board so that it will fit inside the tin ( allow some extra room for batteries)
solder it on to the perf board but add wire so you can connect it to the switch, jack, speaker and batteries

i've added a picture of how it might look on a breadboard and perf board
the yellow wire recieves the guitar signal
the green wire goes to one side of a speaker
the blue wire goes to the switch
the 9v clip is just to signify power in and ground

you can see that there is not much there, and you'll only need one or two hole spaces surrounding your LM386 chip when soldering it onto perf board (so about an 8x8 hole board)

make sure all ground connections are well soldered together, and you may need to have a wire touching the jack's ground (sheith) for a better sound.
Hi! Was wondering if you could help, when I turn it on, it only makes a buzzing sound, and it doesn't do anything when I plug it into my guitar. I replaced the 250 uf cap with a 220 uf cap and the .05 uf with a .047 uf, as well as the 10 ohm resistor with a 100 ohm resistor because that's what I had on hand. I'm guessing that's the problem, but I'm not sure. Any help would be appreciated! Thank you!
<p>hmm can't really tell but, make sure all your grounds are connected</p><p>it looks like your ground to the speaker and ground to the jack are connected, but not connected to the other grounds</p><p>this could definitely result in no sound or buzz...</p><p>i would also try to stick with the same components if you can.</p>
<p>Hi! Thanks, it turned out I didn't have the speaker/guitar output to ground. All fixed and working now! Thank you!</p>
<p>100.5 watt speaker????</p>
<p>It's a small project, even though it's really cool. I have a Strat, so I don't think I'll be able to use without a few adjustments. But I can try to use a different jack.<br>I always like projects that use nintendo characters, usually that means the author it's a good person to have a conversation xD</p><p>Next time if you could post more pictures will be better.</p><p>Congratulations for this instructable o/</p>
Very clever. Have you tried to plug it into a Strat? I'm curious to see whether the tin will hit the body of the guitar or if the jack is at enough of an angle on the Strat to clear it.
i haven't tried (cause i don't have one) <br> <br>i mention it might not work for strats <br> <br> <br>if you want to test you could go to guitar center or something and see if they have those same kind of jacks and then put something flat on the back of it to see if it fits.
Got a have an adapter of some sort to use that Mario Bro's Mushroom Amp, along with a standard Stratocaster... <br> very very cool amp though! <br>
Very clever and useful thing!
Do you happen to have an image of the board and components together prior to installation into the tin?
i've added pictures of how it might look on breadboard and perf board, it's not exactly what's in mine (because i don't want to take it apart again) it but it should work
dude this is amazing

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