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Tiny tiny speakers?
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rawfuls
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Tiny tiny speakers? - 12.11.2011, 11:45 PM

So....

I'm kind of making that unicorn horn I was planning awhile back..

I'm looking for just one tiny little speaker, something that I can set up and play some music with (does NOT have to be good at ALL), it's pretty much just going to go into a y-split connector, and have the other end going to some LEDs, which are wired up to play off of sound..

Anyone?
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brian015
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12.12.2011, 08:15 AM

Can you pull one out of an old musical greeting card?
   
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BrianG
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12.12.2011, 11:08 AM

How tiny is tiny? Diameter/depth? And what frequency range are you looking for?

If it's over 5kHz, you can use a Piezo element. Low power requirements make it an easy choice if you want to reproduce sounds like you'd get out of a greeting card, and driving it directly from a low power headphone-level amp (like an LM386).
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12.12.2011, 11:24 AM

Way to cheap for those greeting cards, though, a pretty neat idea, so may pick one up if I have to.

Haha, I have no idea BrianG.

Tiny enough to mount onto something that's wearable.
Something like a greeting card speaker, I'd think, is perfect.

It'd be running into a y-split, coming out of an iPod..

Mind drawing me up a basic diagram? haha
May have gotten myself into a bit more than just an itsy bitsy project..

This is what I want to do:

http://hacknmod.com/hack/led-light-b...to-your-music/
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BrianG
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12.12.2011, 12:16 PM

While that circuit would work, I would personally buffer it from the ipod's output. If that transistor fails, you could send 12v (from the battery) to the ipod headphone output. Also, there is no current-limiting for the LEDs other than the "resistance" of the transistor, which is determined by how hard the ipod's signal is biasing it.
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12.12.2011, 04:45 PM

Hmm, okay, so.. in layman terms? :)

Trying to keep it as cheap as possible and as simple as possible, but if another way is clearly better than I'm open to that as well.
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whitrzac
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12.12.2011, 09:48 PM

go to dollar store....
buy earbuds/headphones for $1...
???
profit...


   
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12.12.2011, 09:49 PM

Needs to play a bit louder than headphones...
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tech_freak
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12.17.2011, 08:44 PM

Quote:
Originally Posted by rawfuls View Post
Needs to play a bit louder than headphones...
http://www.parts-express.com/pe/show...number=264-909 <-Heavy breather of minis
http://www.parts-express.com/pe/show...umber=264-1056
http://www.parts-express.com/pe/show...number=264-861
http://www.parts-express.com/pe/show...umber=264-1042
   
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rawfuls
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12.17.2011, 08:47 PM

Don't need a full-range.
Want something I can just tape against the toilet paper roll or something, and have it play.
Hm, actually..

Those are a bit too expensive.
Might have to look into ripping one out of those sing-along-books that people can grab at grocery stores..

Could I just desolder the leads to that and use that?

Last edited by rawfuls; 12.17.2011 at 08:56 PM.
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