Okay, so basically I have modified a small battery powered clock to use a smoke detector speaker. It is super loud and could possibly be used as a device to reanimate the dead. Please keep in mind this is my first Instructable, so just bear with me. Let's get this started!
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Signing UpStep 1: Things you will need:
1. cheapo- alarm clock. it cannot be a clock-radio, it has to be a simple, beeping one.
2. old smoke detector. we just need the beeper (I don't know the actual term for this type of speaker)
Tools:
1. Flat tipped screwdriver (or other tool for prying)
2. Pliers
3. Soldering iron, with solder, of course!
4.work station (optional)







































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The new speaker will just play the same sound as before...not the loud beeping noise of the detector.
its usualy a motor using a special blade to cause a high pitch noise... or if u are lucky, a speaker
before it i used opera, which i now use for my website accounts =D
Don't give yourself lung cancer by being lazy- take care with dismantled smoke alarms.
Voltage is 'how fast' the current will move.
Current x Voltage = Power (watts)
Voltage is more like pressure. Take the water pipe analogy: Voltage is like the water pressure and Current is like the rate of flow.
And to clear everything up:
- Power is the rate of Energy transfer, Joules/Second or Watts
- Energy is the work being done, Joules
- Voltage is energy per Coulomb
- Current is Coulombs per second or Amperes
- Resistance is the voltage dropped per Ampere (V=I*R), measured in Ohms (Ω)
Things like speakers have an impedance which is also measured in Ohms but it can't be considered an Ohmic resistance because V=I*R doesn't hold linearity.
Travis7s, u took the words right outta my mouth
http://www.radioshack.com/family/index.jsp?categoryId=2032266
http://www.thinkgeek.com/homeoffice/lights/91f2/