Tiny tiny speakers?
 

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?

Can you pull one out of an old musical greeting card?

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).

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/

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.

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.

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


:na:

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 :yes:
http://www.parts-express.com/pe/show...number=264-861
http://www.parts-express.com/pe/show...umber=264-1042

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?