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Raid Siren Schematic

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magnumcalib

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Alright, as per all of my projects are, I am wanting it for a paintball team. The Siren, would just be a siren, battery, switch and a focusing horn (pretty much an air raid siren). Now, I don't want just a standard Peizo buzzer that just pisses the opposing team off, I want it either to change pitches slowly (maybe every 1/2 second, like a high-low high-low") many be powered by a 9-18 power source. what would you guys suggest doing? I was thinking about using a siren such as this one SIren From Radioshack would there be any way to slow down the wee-wah effect on this siren? Or if you have any other ideas that'd be cool too, I am hoping not to make one that requires the spinning cylinder that sucks in air, so again, anything would be great thanks.

the reason for the device:
just a perimeter defense for the team, instead of radioing in on the walkie's or the field phones I made, just have the lookout set off the siren and let her run (sort of like a lot of video games seem to have, turn off the siren to stop the enemies from coming in)

Thanks!
 
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