Difference between revisions of "Theremin"

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[[File:RMTP-Power_Supply_Circuit_Board.jpg|300x200px]]
 
[[File:RMTP-Power_Supply_Circuit_Board.jpg|300x200px]]
[[File:RMTP-Etherwave_PSU_bb.jpg]]
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[[File:RMTP-Etherwave_PSU_bb.jpg|300x200px]]
  
 
* Pitch Antenna Circuit
 
* Pitch Antenna Circuit
[[File:RMTP-Pitch_Antenna_Circuit_Board.jpg]]
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[[File:RMTP-Pitch_Antenna_Circuit_Board.jpg|300x200px]]
[[File:RMTP-Etherwave_Pitch_Antenna.jpg]]
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[[File:RMTP-Etherwave_Pitch_Antenna.jpg|300x200px]]
  
 
* Volume Antenna Circuit
 
* Volume Antenna Circuit

Revision as of 19:51, 23 January 2021

Theremin

In the February 1996 issue of "Electronic Musician", an article by Robert Moog, titled "Build the EM Theremin" was published. Below are the details, images and a sound file for the THEREMIN I built from that article.

Schematic

RMTP-EM Theremin Schematic.jpg

Bill of Materials

RMTP-EM Theremin BOM.jpg


Divide and Conquer

I divided the implementation of the electronics into 6 sub circuits.

  • Power Supply

RMTP-Power Supply Circuit Board.jpg RMTP-Etherwave PSU bb.jpg

  • Pitch Antenna Circuit

RMTP-Pitch Antenna Circuit Board.jpg RMTP-Etherwave Pitch Antenna.jpg

  • Volume Antenna Circuit

RMTP-Volume Antenna Circuit Board.jpg RMTP-Etherwave Volume Antenna bb.jpg

  • Variable Pitch Oscillator - Fixed Pitch Oscillator - Pitch Tuning

RMTP-Pitch Control Circuit Board.jpg RMTP-Etherwave Pitch Circuit Stripboard bb.jpg

  • Volume Oscillator - Volume Tuning

RMTP-Volume Control Circuit Board.jpg RMTP-Etherwave Volume Circuit Stripboard bb.jpg

  • Detector - Voltage Controlled Amplifier - VCA Processor

RMTP-Detector VCA and Processor Circuit Board.jpg RMTP-Etherwave Amp Alt Stripboard bb.jpg

Photos

RMTP-Theremin on Workbench.jpg

RMTP-Pitch Antenna Circuit Board.jpg

RMTP-Pitch Control Circuit Board.jpg

RMTP-Detector VCA and Processor Circuit Board.jpg

RMTP-Volume Control Circuit Board.jpg

RMTP-Volume Antenna Circuit Board.jpg

RMTP-Power Supply Circuit Board.jpg

Fritzing

Actual construction resulted in difference between the fritzing layout and actual build.

RMTP-Etherwave Pitch Stripboard bb.jpg

RMTP-Etherwave Amp Alt Stripboard bb.jpg

RMTP-Etherwave Volume Stripboard bb.jpg

RMTP-Etherwave PSU bb.jpg