Oscilliscope Theremin with Joule Thief
 
This Theremin is built around part of a panel from a deceased oscilliscope.Two other parts were also used to make two more Theremins
with Joule Thieves.Once again I used the basic Theremin circuit,but with some changes:
I used a 10 K variable resistor for pitch control and a 20 K variable 
resistor for volume control.The circuit is powered by a 9 V battery.
I started with the four pieces of wood for the frame and put some sheet metal on 3 of these
to reflect the light.On the bottom piece is a piece of 
mirrored acrylic sheet.
I glued these together,then attached the panel using some spacers.
I used part of the aluminium casing of the oscilloscope to cover one side.
The other side is clad in some Dibond® off cuts.
On the top of the Theremin is a piece from a vintage tin can,the bottom 
from the same can was used to make the door.It was almost the same size.


 

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