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Using piezo buzzers from birthday cards and muiscal ties as mp3 speakers. How to wire 2 in series and amplify etc? Answered

Ok so i want to make this instructable: https://www.instructables.com/id/Make-an-iPod-Speaker-from-a-Hallmark-Music-Card/ i look around for a musical card but i can't find one. But i do find some miscal things taken out of christmans ties n such and also some old piezo buzzers. I figured these would work the same after tryin for a while with some headphone wires i gave up trying to wire them up as my headphone wires had 2 brown, 1 red and 1 green wire and in the instructable it only had 2; 1 brown and 1 red.

After a while i tried a new wire and i got it to work, but it's very quiet. So i thought i would try and wire up the 2nd one to see if it would make it louder, but i couldn't get any sound out of it.
THis is what the 1st speaker wired up looks like:

My first question is can i simply wire the other speaker onto the same wire as this one is currently or do i have to add another set of wires( split them) so there is 2 set of wires (1xred and 1xbrown)?

secondly before i cut off the speaker (in it's original christmas song buzzer circuit thing) it was considerably louder, is this because there is an amplification part to this circuit- if so can i take it out?
Im guessing not looking at it: this is the original circuit: https://www.instructables.com/files/deriv/F94/NO2I/FWMO31V2/F94NO2IFWMO31V2.SQUARE.jpg

I know that was long winded but thanks to anyone hwo gives their time to try and help




9 years ago

It's just not going to sound good, no matter what you do. You'd have more luck scrounging speakers from a junked TV or something. Even then, they won't be very loud unless you add an amplifier. Check ebay for TA2024 amp boards... those are good quality for the money.


9 years ago

sorry bout small pictures, if you want to see them bigger at the end of the url change the word "SQUARE" to "LARGE"