Theremin: Difference between revisions

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== Divide and Conquer ==
== Divide and Conquer ==
I divided the implementation of the electronics into 6 sub circuits.
Paired are a fritzing design and actual implementation photo.  Differences between the two did occur.


* Power Supply
* Power Supply
[[File:RMTP-Power_Supply_Circuit_Board.jpg]]
[[File:RMTP-Etherwave_PSU_bb.jpg|300x200px]]
[[File:RMTP-Etherwave_PSU_bb.jpg]]
[[File:RMTP-Power_Supply_Circuit_Board.jpg|300x200px]]


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


* Volume Antenna Circuit
* Volume Antenna Circuit
[[File:RMTP-Volume_Antenna_Circuit_Board.jpg]]
[[File:RMTP-Etherwave_Volume_Antenna_bb.jpg|300x200px]]
[[File:RMTP-Etherwave_Volume_Antenna_bb.jpg]]
[[File:RMTP-Volume_Antenna_Circuit_Board.jpg|300x200px]]


* Variable Pitch Oscillator - Fixed Pitch Oscillator - Pitch Tuning
* Variable Pitch Oscillator - Fixed Pitch Oscillator - Pitch Tuning
[[File:RMTP-Etherwave_Pitch_Circuit_Stripboard_bb.jpg|300x200px]]
[[File:RMTP-Pitch_Control_Circuit_Board.jpg|300x200px]]


* Volume Oscillator - Volume Tuning
* Volume Oscillator - Volume Tuning
[[File:RMTP-Etherwave_Volume_Circuit_Stripboard_bb.jpg|300x200px]]
[[File:RMTP-Volume_Control_Circuit_Board.jpg|300x200px]]


* Detector - Voltage Controlled Amplifier - VCA Processor
* Detector - Voltage Controlled Amplifier - VCA Processor
[[File:RMTP-Detector_VCA_and_Processor_Circuit_Board.jpg]]  
[[File:RMTP-Etherwave_Amp_Alt_Stripboard_bb.jpg|300x200px]]
[[File:RMTP-Etherwave_Amp_Alt_Stripboard_bb.jpg]]
[[File:RMTP-Detector_VCA_and_Processor_Circuit_Board.jpg|300x200px]]  


=== Photos ===
=== Photos ===
Line 35: Line 39:
[[File:RMTP-Theremin_on_Workbench.jpg]]
[[File:RMTP-Theremin_on_Workbench.jpg]]


[[File:RMTP-Pitch_Antenna_Circuit_Board.jpg]]
----
 
----
[[File:RMTP-Pitch_Control_Circuit_Board.jpg]]
[[JAC Projects|The JAC Project Index]]
 
[[File:RMTP-Detector_VCA_and_Processor_Circuit_Board.jpg]]
 
[[File:RMTP-Volume_Control_Circuit_Board.jpg]]
 
[[File:RMTP-Volume_Antenna_Circuit_Board.jpg]]
 
[[File:RMTP-Power_Supply_Circuit_Board.jpg]]
 
===Fritzing===
 
 
Actual construction resulted in difference between the fritzing layout and actual build.
 
[[File:RMTP-Etherwave_Pitch_Stripboard_bb.jpg]]
 
[[File:RMTP-Etherwave_Amp_Alt_Stripboard_bb.jpg]]
 
[[File:RMTP-Etherwave_Volume_Stripboard_bb.jpg]]
 
[[File:RMTP-Etherwave_PSU_bb.jpg]]

Latest revision as of 19:50, 4 June 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

Bill of Materials


Divide and Conquer

Paired are a fritzing design and actual implementation photo. Differences between the two did occur.

  • Power Supply

  • Pitch Antenna Circuit

  • Volume Antenna Circuit

  • Variable Pitch Oscillator - Fixed Pitch Oscillator - Pitch Tuning

  • Volume Oscillator - Volume Tuning

  • Detector - Voltage Controlled Amplifier - VCA Processor

Photos



The JAC Project Index