Photograph by Matt Blum
ELASTIC STRING BASS
Optically amplified rubber band twang.
I’m always inventing new demonstrations for school. To show how inductive pickups work, I once built a comically large guitar that I strung with steel cable. Later I decided that optical sensing is more versatile, since it works with strings made from any material, and it’s also actually easier.
So I came up with this rubber-band bass. Plug it into a standard guitar or bass amplifier, and you can play amazingly low frequencies and cool sounds. Each ...
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