Mini Coffin Guitar Amp (on battery)

 

(Sorry, I screwed up alot in this video, and battery in amp wasn't full. it's much more louder)
 

Hi! Welcome to the toutorial of how to make a Mini Coffin Guitar Amp, that plugs directly into guitar, WITHOUT WIRES and  WITHOUT ADAPTER. Its COMPACT, runs on a single 9 volt battery and has BUILT IN OVERDRIVE.

WARNING! This amp is designed for Stratocaster guitar. ( it can fit other guitars as well, but i cant guaranty anything)  :)   (And sorry for my English aswell)

 

Step 1: Parts you need

You'll need:
  cardboard ( preety thick)
  a small speaker ( about 1.5W)
  guitar plugg (with a plastic body)
  hot glue
  black paint
  9v battery
  Clip for 9v Battery
Parts for a circuit:
 
  R1       22K 1/4W Resistor
  C1       10µF 25V Electrolytic Capacitor
  C2        100nF 63V Polyester or Ceramic Capacitor
  C3        220µF 25V Electrolytic Capacitor
  IC1       TDA7052 Audio power amplifier IC

That's it.  Maybe you'll need something esle too, but im sure you can find it at home.

Comments

[mahenjunggul]

VERY...VERY Cool Tutorial...
VERY...VERY Cool Project...

[sbasilio1]

theres something wrong in your schematic, pin 2 is connected in to the + of mono jack not in negative, and add R1 to it, no need to use the C1, thats all :)) search for the data sheet of TDA7052 ,

[jorence]

great project!!! but it doesnt work!! watta mess

[Pykrete]

Hello! First of all thanks for your instructable. It's a great idea. I'm a newbie in electronics and I'm trying to build it but it doesn't work and i found strange the ground connection in R1. It's it ok? Thanks for your time.
PS: i cant wait to make my electric guitar portable and wireless!

[mark_roz]

Hi! I glad you liked it. sorry i replied so late.
i'm still new in electrons too. Yes, I had my R1 connected to the ground. I don't know what can be wrong in your circuit. make sure the IC is exactly TDA7052, without any letters at the end. they are slightly different, but may cause some problems.

[mirko.miljevic]

the TDA7052 is impossible to find...why couldn't u use something more common?

[grimsdagger]

what about the LM386 - Low Voltage Audio Power Amplifier?

http://www.hobby-hour.com/electronics/lm386-power-audio.php this might work, but I'm not exactly an electronics engineer, but this chip is designed for battery powered operation :)

[kenkaniff]

I ordered 1 online, but it came all the way from Hong Kong and took a month to come in :S

What a pain...

[jimdkc]

There is an error in your schematic. The negative side of the battery should be switched to ground... not the signal input!

[Peter Norton]

Would this work for a Bass guitar? I don't know much about electronics, but as I understand it the lower frequencies of a bass guitar tend to destroy the circuitry of things designed for the higher frequencies of a regular electric guitar. Would I need to change any of the components in the circuitry to adapt this cool little amp to work on a bass guitar?

[shrew]

Hi, this looks pretty good and it sounds decent too. I was hoping you'd be able to help me as I'm not sure on one thing (I think)? :)

The capacitors (C2 and C3), is only one end soldered onto the wire and the other left hanging or connected to a ground? ...or are the ends soldered onto the 2 remaining IC1 prongs? If not, are these just left with nothing on them?

I'm sorry if I am not clear - I know what I mean, but you probably don't! haha.

If you can help I'd be grateful and if you want me to explain better I will understand. Thanks :)

[omaoz]

you should make a 2 in one pick holder and mini-amp

[Dread_Neck]

Great project. I love it. You could also make into a different shape like a......a.....ummmm....maybe a giant guitar pick or a box.

[mark_roz]

yeah, I'll do something like that in the summer :)
I'm studying in art school as a sculptor,now. In this year I've learnd a lot. I can work with many other materials now. in the past only cardboard was available to me :D
So now I'll start posting huge amount of different stuff, from art to amps :D

[14jpm]

Hi, nice proyect!. like Pykrete, i´m newbie in electronics and i can´t find IC TDA7052...do you know if TDA7052 has equivalent?. Thanks!

[duckman633]

I can use wood right? so it is stronger

[mark_roz]

of course.
i used cardboard only because it's easyer to cut and paint. :)

[yonex]

can it be used for mp3 players or ipod??

[beehard44]

how many watts is your speaker? You might want to add this one: Overdrive works because the amp must output more than 9v but because the input V is 9v, it will clip it at around 8v.
P.S. i'm not that harsh to give you a 1, so i'll go ahead and give you what a good 'ible deserves