Introduction: How to Convert 12volt Relay to a Speaker

This is a simple way to made a Speaker from 12 volt Relay .
  
Materials:
1- 12 Volt relay.
2- Plastic dish.
3- Strong magnet.
4- Audio Amplifier.

Steps:
Connect The input of Audio Amp. to PC or any media player audio output.
Connect the output of Audio Amplifier to 12 volt relay coil  and fellow the below video.  

Note that the Audio Amp. used TDA1557 Chip shown in attached Data sheet. 



 

Comments

author
4lifenerdfighter made it! (author)2012-07-03

As an instructable, it's pretty good. However I wouldn't exactly call it a "tip and trick"

author
Lectric Wizard made it! (author)Lectric Wizard2012-07-03

don't you mean that the other way around ? it's a trick, not an Instructable !

author
4lifenerdfighter made it! (author)4lifenerdfighter2012-07-05

No. The author entered this in an electronics tips and tricks contest. This isn't something that would be convenient to someone doing elecronics.

author
Husham Samir made it! (author)Husham Samir2012-07-05

Well , I respect your opinion but I considered a relay as an electronic parts and I made a tricks to convert it to a speaker , that's why I entered this to this contest.

author
4lifenerdfighter made it! (author)4lifenerdfighter2012-07-05

True. It is fairly impressive. How does this work anyway? Like, isn't sound analogue, and a relay digital?

author
thewestafrican made it! (author)thewestafrican2014-03-05

a relay is just an electromagnetic coil and some contacts, like an electric switch, there is NOTHING digital about a relay

author
astral_mage made it! (author)2013-09-19

would any 12 volt relay work ? and why are the resistors there, wats their purpose used 4?

author
mohitdaksh made it! (author)2012-07-04

wow! this is something!

author
Mahmoud Alaa made it! (author)2012-06-30

AWESOME! 'able

About This Instructable

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Bio: Electrical Engineer
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