Finding Substitute for UM3561 Siren Sound Generator

[orion141]

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.

Link

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


Thanks

Tom

 

[MaGG]

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

 

[orion141]

I saw them but there is one problem, they require a $20 minimum order but don't carry anything else I need for the project, but maybe i will call them and see what they say. Thanks

 

[berkeman]

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.