MisterB sent in this video on how to convert a simple toy microphone into a hydrophone to listen to underwater sounds – Link & kit on eBay.
10 thoughts on “HOW TO – Make low cost Hydrophone (listen to fish & whales talk)”
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HOW TO – Make low cost Hydrophone (listen to fish & whales talk)
Interesting, but a little pricey. You can get ALL of the materials at the dollar store. Total cost of 4 dollars. Thanks for the info though.
in the video, the maker lists and tells you that you can get the parts on your own…
I’m not critizing Phil. I’m sincere. Thanks for the article. I’ll try it out when I get the chance.
T.
Pricey? Perhaps. Kit contains toy microphone, tygon tubing, 12’rubber balloon, non oil based personal lubricant, non hardening modeling clay, cable ties, Q tip, a cd with the complete us navy diving manuals, the us navy underwater salvage manuals, and a how to make money book on ebay all with a money back guarantee.
A more valid criticism would be the poor photo quality of the video, but then I filmed it with a $39 dollar RCA Small Wonder Digital video camera velcroed to my baseball hat. I truly appreciate the opportunity you gave me to share the video, I hope to do more soon, I can’t thank you enough.
regards,
Robert Moffett
Could anyone post a walkthrough of making a DIY piezo-ceramic hydrophone? Supposedly this can be done by ripping the speaker out of a discarded musical greeting card.