Moog Theremini Theremin

Student Invents Theremin-Based Respiratory Monitor

A big congratulations to 17 year old Eswar Anandapadmanaban for being selected as one of the top 15 global finalists in this year's Google Science Fair. 

His project?  Eswar built a theremin-based touchless respiratory monitor.  Dubbed "ThereNIM" (for There-Non Invasive Monitor), the apparatus hangs suspended over a hospital bed and detects the subtle rise and fall of a patient's chest during breathing. A computer monitors and records the signal, which doctors can review to look for signs of sleep apnea or other abnormal breathing patterns.

ThereNIM solves a key problem in the way sleep disorders are diagnosed today: the interference of test apparatus on the patient's sleep.  Being a non-invasive solution, ThereNIM users are free to sleep as they normally would without annoying breathing masks or electrodes being attached to their bodies.

The best part?  The whole device costs less than $50 to build.

This isn't the first attempt at using a theremin as a medical device.  Previous attempts have experimented with theremins to aid posture and in musical therapy.  Unlike previous attempts though, ThereNIM seems to have garnered much more attention.  Let's hope Eswar's project takes off!

You can read much more about ThereNIM at

EE Times on Building a Low Cost Theremin

Thanks to EE Times for pointing us to this theremin experiment kit out of a programmable system on a chip (PSoC) device.  The project uses a PSoC 4 Pioneer Kit from Cypress.  Wire it up to a capacity sensor, add a speaker, download a program to the device, and you're in business!

Have you built one of these?  Tell us about your experience, please!

Read more:  Project #16 - Proximity Theremin (100 Projects in 100 Days)

Via:  Building a Low Cost Theremin (EE Times)

RCA Theremin For Sale In UK

Thereminist and entertainer Bruce Woolley has listed an RCA Theremin for sale on  This is a very rare opportunity to own a very rare instrument!

The instrument was formerly owned by Olivia Mattis and was restored by Floyd Engels.

For more details, visit's classified ads.

Carolina Eyck On How To Tune A Modded Etherwave

Carolina Eyck discusses how to tune an Etherwave Standard Theremin updated with Thierry's awesome ESPE01 mod.

Nano - A New Modular Theremin From Poland

Nano theremin

Meet Nano, a new modular theremin by Polish manufacturer Assec.  Setting it apart from more traditional models, Nano comes as a basic unit that can be extended via add-on modules to give it additional capabilities.  

In its most basic form, Nano features a pitch antenna and a foot-controlled volume pressure plate.  This base unit sits on the floor and the pitch antenna mounts to a standard microphone stand.  The base unit comes with the pitch antenna, power adaptor, cable straps, and a plastic box (presumably for storage).

If foot control of the volume isn't sufficient for your needs, you can add an optional volume antenna that also mounts on the mic stand.  The pitch and volume antennas sit in an L pattern that can easily be rotated left or right to accommodate left or right-handed playing.  The volume antenna features a built-in dial for controlling volume response as well as an on/off/mute switch.

Nano antennas

But wait... there's more!  An additional module provides continuous pitch preview via a headphone jack. 

Personally, I really like the visual simplicity of this design.  Instead of having a power cable as well as audio cables coming in and out of the instrument on the mic stand, the clutter is kept to the floor.  

As for concerns, I wonder how having the pitch tuning knob on the floor unit will affect the usability of the instrument in live performance situations.  We're looking forward to getting our hands on one of these instruments to provide a more in-depth review.  

More information, including photos, audio samples, and how to order can be found at  You can also join in a discussion about the Nano in our forums here.