Finding Substitute for UM3561 Siren Sound Generator

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The discussion centers on the difficulty of sourcing the UM3561 siren sound generator for a circuit project. Users have shared a potential supplier, Kelvin, which offers the component but requires a $20 minimum order, posing a challenge for those needing only the UM3561. There is also mention of unsuccessful searches on findchips.com for alternatives. Participants suggest collaborating with other students to meet the minimum order requirement. Overall, the search for a substitute or reliable source for the UM3561 continues.
orion141
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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
 
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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
 
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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
 
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.
 

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