Water dancing in a Speaker

at 6 volts,* the speaker cone filled with water produces standing waves.
at 10 v,  maxing out the speaker, water droplets splash up. 

i coated the paper cone of 1 speaker with liquid electrical tape to waterproof it.   an identical speaker went unmodified.  water doesnt seem to harm the paper cone. both speakers work with water.

when directed down into a bucket of water,  sound stirs the water.

* chopped dc voltage from an ordinary ac to dc transformer

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Toga_Dan (author) 2 years ago

new details.. these speaker cones seem to be made o some sort of fabric, not paper.

i cut a speaker shaped hole out of the bottom of a plastic box, and glued a speaker in with marine sealant. the idea is to increase depth of water. upon reading fine print of sealant, it may be 4 days to-- 3 WEEKS --before it reaches full strength. sigh.

Kiteman2 years ago

Frequency will have a big effect as well as voltage.

Have you got any video?

Toga_Dan (author)  Kiteman2 years ago

im not sure if my keyboard has power to drive these speakers. hmmmm.. how else could i change frequency?

im reminded of ultrasonic fog generator. i suppose frequency will affect droplet size...

no video yet. took some stills, but not very good pics.

A simple tone or signal generator, even a bit of music from your phone,maybe through an amp?

Toga_Dan (author)  Kiteman2 years ago

cool, yeah. found a schematic for tone gen. 555 chip plus 4 components..

Toga_Dan (author) 2 years ago

2 new details.. these speaker cones seem to be made o some sort of fabric, not paper.

i cut a speaker shaped hole out of the bottom of a plastic box, and glued a speaker in with marine sealant. the idea is to increase depth of water. upon reading fine print of sealant, it may be 4 days before it reaches full strength. sigh.