When An Axe Isn’t Enough

November 19, 2009 by Mike Szczys 22 Comments

[Chris] wanted a guitar with a keyboard but didn’t want a keytar. Like any good hacker he took a cheap guitar and a small keyboard and introduced them to each other. He moved the control knobs to make room for the keyboard and added the control circuitry from the keyboard to the top of the guitar’s body. A 9v battery is used to power the keys and something called “Chris Collins’ transformer trick” is used to amplify its sound. If you know details on this transformer, leave a comment and we’ll update the post. Take a look at the video after the break to see [Chris] perform the Final Countdown on keys and guitar.

The guitar is a Chinese made Telecaster clone and we think he’s the first one to find a realistic use for keyboards that don’t use full-sized keys. [Chris] apologizes for the lack of build photos but we give him a pass; he lost his phone while crowd-surfing and that’s as good an excuse as any for losing some pictures. We can’t wait to see another performance with this gnarly axe once he’s had enough practice to pull everything together!

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Servoelectric Guitar Is A Keytar With Strings

November 6, 2009 by Mike Szczys 18 Comments

servoelectric-guitar

[Keith Baxter] has undertaken something of a ‘Mount Everest’ of guitar modifications. He’s developing a Servoelectric guitar that trades frets for a keypad. It is still a guitar in the sense that it has a body, strings, and pickups to sense the strings vibrations and pass them to an amplifier. The left hand, which traditionally would shorten the strings as needed by pressing them against a fret, now changes string pitch using a keypad. This is an interesting fusion between traditional guitar and 80’s phenomenon, the keytar.

Each string is connected to a different servo motor. When a key on the keypad is pressed, the corresponding servo adjusts the tension of that string, bringing it in tune at the new pitch. His original design involved a lot of custom circuitry but he’s evolved the project to include an Arduino controller. This second generation both simplifies the control circuitry and improves upon it.

We’ve embedded some video after the break. In the first example you can see the strings adjusting for each new pitch. In the second, take a look behind the guitarist… what do you think he’s got planned for those giant capacitors?

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NES Guitar

October 15, 2009 by Caleb Kraft 17 Comments

[youtube=http://www.youtube.com/watch?v=2WUNyImfBPQ]

[Dave] set out to build the ultimate NES guitar. He’s apparently done a pretty good job, this thing is pretty remarkable. Every detail is covered in NES goodness. The body is a console, the head is a cartridge, his knobs are even replaced by goofy little heads of Mario and friends. We think he should do some custom pixel art inlays in the fretboard next. Skip to about 2:00 to hear him play a Nintendo medley on it.

Guitar Hero Strum Bar As Guitar Kill Switch

September 3, 2009 by Mike Szczys 20 Comments

guitar_hero_killswitch

[Ray] had a Guitar Hero controller for PlayStation 2 sitting around. Because he moved on to playing the game on Xbox 360, he decided to cannibalize the older controller for its parts. He removed the strum bar and fit it inside of a mid-1980’s Peavy Patriot electric guitar. Once wired up, it works as a kill switch; it stops all sound from making it to the amp whenever the strum bar switch is actuated. Don’t miss hearing this effect in the video after the break and keep sending in those Guitar Hero mods. Continue reading “Guitar Hero Strum Bar As Guitar Kill Switch” →

Stereo Guitar

July 27, 2009 by Caleb Kraft 39 Comments

stereo_guitar

[Megatronix] wrote in to show us this pretty crazy guitar mod. He has re wired the pickups to make the guitar a “Stereo Guitar“. Generally, the two pickup locations on a guitar are there to provide tonal variation. You can adjust the influence of each to get the sound you want. [Megatronix] decided to re wire the setup so that one is the left channel and one is the right. Thus providing actual stereo sound from his guitar. This will limit his tonal variation considerably, but should at least serve as a proof of concept. We really want to hear a recording of it in action though.

La Guitare à Crayon

July 15, 2009 by Caleb Kraft 15 Comments

[vimeo http://vimeo.com/5212424%5D

As with most electronic musical instruments, we saw this in the tip box and expected the usual random noises to show off the instruments range. Consider us pleasantly surprised. They cut strait to it and showed us what la Guitare à crayon really is. It is an instrument of both audio and visual art. You draw while you play. The guitar appears to have a wacom attached to the front where you would normally strum. different areas of the wacom seem to effect the music much like a string being plucked. In one of the videos we see some fret board action as well. Watching the screen, we can see that she is drawing a picture, and we are in fact hearing that picture being drawn. The site has a section for source code, but states that it will only posted if there are requests. We are officially requesting it, we want one. May we suggest some improvements? Get some color variation, possibly opacity too. Gimp can do it with the wacom. We can’t wait to see how this project matures. How about another video? Watch it after the break.

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The Prism: Laser Synth-Guitar

July 13, 2009 by Caleb Kraft 23 Comments

[youtube=http://www.youtube.com/watch?v=HP2zbGes2Bg]

This is an interesting instrument. Part laser harp, part guitar, the Prism seems to have some potential. [Jeff-o] put some major time and effort into refinishing a guitar, building the circuit and putting it all together. He did a great job, the instrument looks fantastic and appears to work. We do have a request though; please post a video of it being played as an instrument. So many of these electronic instrument projects just spit out random noises. While we understand that some people are into that, we would love to hear some control. How about intentionally changing notes to make a melody? Based on the description, it should have control for pitch, and even speed of the oscillation. So let’s hear some music. We don’t care if you’re any good, just please play some music with it. If you would like to build your own, he has the schematics and PCB layout available for download.