Here's a list of various types of theremin schematics. You'll find tube theremins, transistor theremins, optical theremins, beginner, and advanced projects. If you're not sure where to start, we suggest reading through our theremin construction forum to get an idea of which schematic might be best for you.
Channel Road Vacuum Tube Theremin
A great write-up on a custom vacuum tube theremin built by John Polstra of Channel Road Amplification. The article features schematics and discussion to explain design choices.
Thierrymin pitch only theremin
A pitch only theremin schematic designed by noted theremingineur Thierry Frenkel. Designed to be built from readily available parts and to perform well. Perfect for the hobbyist, for science fair projects, or for anyone who wants to scratch build a working theremin!
15 Russian Theremin Articles With Schematics
A set of 15 theremin-related articles appeared in the Russian magazine Radio from 1964 onward. TW member ILYA graciously scanned and donated this trove of information and also provided a handy English index with tips for reading the Russian schematics.
A Wine Box Theremin
Theremin World member Adrian Bontenbal shared this article with us detailing how he built a transistor theremin inside a wooden wine box.
Kustom Theremin Schematic
Robert George supplied this schematic for his Kustom theremin, originally based on the Moog Melodia theremin.
Skywave H1 Theremin Schematic
These schematics / code / layouts are for the Skywave H1 Pitch-only “Theremin”. 16 of these were built and operated in the Royal Festival Hall (South-bank arts centre) for 10 days in 2010. Includes schematic, parts list, and circuit board patterns.
Quick and easy Arduino-powered theremin
Here we show a little Theremin module which plugs onto a Arduino Board that gives out the tune to a speaker or puts out the tune as control signal like MIDI, Servo etc. We were using this device not only as a musical instrument, various kinds of proximity sensors, pointing devices or as interface in combination with Processing, Max or Pd have been build with this technique.
The Open.Theremin is a open hardware and open software theremin project. The modular system consists of a RC or LC heterodyne oscillator module and a micro controller UP module with interface and supply circuits.
Art Harrison shares his latest theremin designs with the world! Be sure to check this one out for clear directions and excellent technical description.
LEGO Optical Theremin
Build an optical theremin out of LEGOs! Step by step instructions, schematics, and a demonstration video are provided.
Alexander Zeyliger's theremin project from CalTech
This person designed and completed a theremin for a class project at CalTech. He's graciously provided both a writeup with excellent technical information and schematics for his project. I finally got the original postscript files back, and they are available below in GZIP format:
The Theremin, by Robert Moog
This tube theremin article originally appeared in Radio and Television News in 1954. You might have trouble finding all the parts to build this theremin today, but the article is also an excellent source of technical information.
Hand-Drawn Schematic (.GIF, ~58k)
Long before even the first version of the Theremin Home Page, John Honniball
from the University of the West of England faxed me this hand-drawn theremin schematic after I posted a request to a USENET newsgroup. I analyzed it with fellow engineering students and learned a lot about basic theremin design from this simple circuit. It is a "U.K.-ified" version of a 60's Moog theremin design.
University of Glasgow Online Theremin Exhibit
Look here for photos and schematics of two custom-made theremins. Both analog and digital models were built and are discussed on this site. I get a lot of questions about their digital theremin, so I've started compiling a FAQ
. Feel free to contribute!
Big Briar Etherwave Mute Switch
Ever wanted to get rid of the "pop" when you turn on your Etherwave? Arthur Harrison has developed a mute-switch for the Etherwave that will do just that. It also adds a "mute status" light which doubles as a power-on light. Here's the schematic. Don't forget to browse the rest of Art's great site!
The RS Theremin
This site shows you how to build a theremin using only parts available at your local Radio Shack!
Pierre Genet's Tube Theremin
Pierre has built a new tube theremin design based loosely on the RCA theremin. He has graciously shared his schematic and several sample sound clips with us!