Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

UM3561 help

  1. Apr 9, 2007 #1
    Hey guys I am trying to build the circuit from the following link, but I have been unable to find the three siren sound generator UM3561 and I was wondering whether anyone knew of where i could purchase one or what substitute i could use. I have searched all over the internet with no luck.


    http://www.electronicsforu.com/electronicsforu/lab/ad.asp?url=/EFYLinux/circuit/January2006/CI-Jan06-02.pdf&title=IR%20Burglar%20Deterrent [Broken]


    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Apr 9, 2007 #2
    I found this on a front page of a Google search, don't know how reliable the site is though:

    http://www.kelvin.com/Merchant2/merchant.mv?Screen=PROD&Product_Code=600203&Category_Code=ELPCICSC [Broken]
    Last edited by a moderator: May 2, 2017
  4. Apr 9, 2007 #3
    I saw them but there is one problem, they require a $20 minimum order but dont carry anything else I need for the project, but maybe i will call them and see what they say. Thanks
  5. Apr 10, 2007 #4


    User Avatar

    Staff: Mentor

    Hmmm. No match at findchips.com either. Hopefully the kelvin site works for you. Are there any other students building this project? Maybe you can all pool your order.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook