OSH Park
555 Pocket Theremin
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555 Pocket Theremin
by
Neon_Bulb_Dude.
2
layer board of
2.59x1.25
inches
(65.74x31.75
mm).
Shared on
October 18th, 2014 03:16.
This is the first version of a board based on a “Pocket Theremin” published in a Popular Science article. I’ve tested the board and it is functional. You will need to attach two variable resistors in the indicated locations. The variable resistors can be anything–playdough, photoresistors, saltwater, conventional variable resistors, etc. May want to use larger capacitors than the indicated 0.01uF–I went as high as 0.4uF. Bigger capacitors=lower frequency. Be creative!