Moog Theremini Theremin

Channel Road Vacuum Tube Theremin

Vacuum tube theremin by John Polstra

John D Polstra of Channel Road Amplification (Lopez Island, WA) shared with this write-up of a beautiful looking and sounding vacuum tube theremin he constructed.

For the technically savvy, the article contains full schematics of his design along with a description of the circuit & various design choices he made along the way.

To complete the vintage approach, John housed the theremin in 1933 radio cabinet.


Read: A Vacuum Tube Theremin (

ThereMIDI - Patch Editor and Controller for Theremini

Numerical Audio has announced the launch of ThereMIDI, a new iPad app for the Moog Theremini Theremin.  

ThereMIDI combines a patch editor/librarian, MIDI controller, and MIDI converter into 1 convenient package.

ThereMIDI allows direct access to all of the Theremini's available MIDI parameters, preset management, randomization and more. Patches can be stored on the iPad or uploaded to the Theremini. As a realtime controller, ThereMIDI comes with a built-in 16 step modulation sequencer that works on a variety of targets including filter cutoff, resonance an type, even sequencing pitch is possible.  In the MIDI converter mode, ThereMIDI converts CC data into MIDI notes making it possible to use the Theremini to play other synths. A built-in quantizer makes playing fun and easy to learn, users can choose from a variety of scales.

ThereMIDI is currently available at an introductory price of $4.99.  It will normally sell for $8.99 after that.

Rare Ethervox MIDI Theremin For Sale At Auction

Big Briar Ethervox MIDI Theremin

An auction house in North Carolina has listed that a rare Big Briar Ethervox MIDI theremin will be available for sale this weekend.  These extremely rare instruments were produced by Big Briar around 1997-1999.  It is believed that only ~50 were produced.  The Ethervox uses a digital sound generator to produce various timbres and traditional analog electronics to sense proximity.  The Ethervox is unique in that it can output both CV and high resolution 14-bit MIDI signals via a "snake" box.

The auction listing claims the estimate to be $1500-$3000, which in our opinion would be a substantial discount from it's actual value.  Best of luck to all the bidders!

More: Big Briar Ethervox MIDI Theremin (

Related: Big Briar Ethervox MIDI Theremin (photo gallery)

Moogfest 2016

Moogfest 2016

Moog Music officially announced Moogfest 2016 today.  In a bit of a surprise move, the internationally acclaimed bi-annual festival of music, art, and technology will be held from May 19-22 in Durham, NC this year instead of Moog Music hometown, Asheville, NC.  

Not many details have been announced about the acts participating in Moogfest 2016, but we'll bring you updates as they're made available.  The event followed a similar pattern last year, announcing new acts week by week as the event drew closer.


Carolina Eyck in Concert at Caramoor

Carolina Eyck

Thereminist Carolina Eyck will be in concert on July 12th at the Caramoor Festival in Katonah, NY.

At 2:30pm, she will perform a pre-concert Recital with pianist Christopher Tarnow - 1st Theremin Sonata by Christopher Tarnow.  You can see a video of an earlier performance of this work here.

Then, at 4:30pm, she will perform with with the ensemble Music from Copland House - "Fantasia" by Bohuslav Martinu and "Spellbound" by Miklos Rosza.

Ms. Eyck will also be available for private lessons in Hopewell Junction, NY on July 6th and 9th.  Contact her directly on her website for arrangements and details.

For tickets and more information about the Caramoor events, please visit

Visit Carolina's website at 


Older Posts...