DIY hydrophone

This clever hydrophone project involves rewiring ordinary earbuds with condenser microphone capsules and filling the earbud casings with silicone, [Thanks, Pete!]

6 thoughts on “DIY hydrophone

  1. I just happen to have a couple of condenser mic capsules sitting right here. I think I could save some time just by covering them in a glob of silicone.

  2. There’s a free GNU project that used ordinary sound cards and a net of cheap transducers that could pinpoint very small craft in the water. I’ve lost the link. :(

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My interests include writing, electronics, RPGs, scifi, hackers & hackerspaces, 3D printing, building sets & toys. @johnbaichtal

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