well, im using a squirrel cage motor and i dont know how many rpms it is. i think its a 3 ton though.ver tum wrote:The higher pitched siren sounds like it probably has 16 ports.stator-potater wrote:the sirens not a model q. its shop made. and the other video is not a picture, its just really slow. im building a siren right now but i sure hope it doesnt turn out as high pitched as that one.
anyone got any ideas to how many ports is on that thing?
On your home made siren, I would suggest that if you want a loud, but lower pitched sound, go with a curved roter, with between four and eight ports. An eight port siren with a curved roter produces a lower pitch at 3450 RPM's, and it can be very loud, depending on the size of the roter, and the type of horn you use.
edit: this is my other account. i will mostly be using this one.