Picture of Gakken Theremin Kit Hack
Here are instructions to do some basic hacks to the theremin kit that you can buy from Make. True, there are already directions to do both of these things in the accompanying magazine, but what sets this how-to apart is that it is in English. If like me you can't read Japanese and unlike me, you couldn't figure out what to do from the pictures alone, this should help.

Basically, what I am doing is adding an audio out jack and also a bigger, sturdier telescoping antenna. This is a great improvement on the original.

Step 1: Go get stuff

Picture of Go get stuff
You will need:
Gakken Theremin Kit (from Make)
A power drill
A mini screwdriver set
A mono jack with switch
Something with a telescoping antenna
A solder setup
Some extra wire
Assorted hardware
earnst2w86 years ago
what kind of headphones are they? i really like them :P some retro stuff :D great instructable!
randofo (author)  earnst2w86 years ago
yeah, but i really like the sound cancelling headphones you used, where did you buy the sound canceling headphones ( without the speakers inside) wich store? or the web? thanks
i was gonna ask that exact question. :D
Spokehedz6 years ago
If you find the audio-amplifier circiut (should be a simple op-amp) you might be able to tap into the signal and get line-out voltages from this.
randofo (author)  Spokehedz6 years ago
It's just a 386. I considered doing that, but decided to just go along with illustration in the accompanying magazine and see how that goes.
Always good to follow the instructions first, and then do your own after. Give you a better idea on what's going on.
conrad24686 years ago
Is it possible to make a long range thermin?
crapflinger6 years ago
a pox on digital theremins! it's not a real theremin (though...that's obvious with this one)...the sound is never as good as an analog one

theremaniacs make a nice analog single antenna model that's pretty cheap (relatively)...i got one of these kits for my dad and made my own case/mount/whatever for it out of a cigar box and a little bust of chairman mao...sounds great! http://www.theremaniacs.com/
Sandisk1duo6 years ago
very cool!
Nice one, very detailed. One thing might be important, the output signal from the jack is very strong, its a good idea to use headphones with volume control like i see in the picture above. I can use Ipod speakers on it without turning them on. I didn't dare to hook it up to an amp, i think it might blow it. I'll build a mixer first.
gmjhowe6 years ago
Nice! I think you did a great job modifying it. I have always wanted a theremin. Goes to waste money on one..