True, But what i meant in the beginning is the feasibility of creating a fully functioning 2000-20,000 Rpm siren.

I would think someone with a metal lathe could easily create a stator for that. That would be some tight tolerances though.

Anyone thought of modifying a Vacumn into a siren. Some of those commercial hoovers can make a siren prolly comparable to a Model 2.

http://www.youtube.com/watch?v=G7kZFjckglY&NR=1

Isnt that a e57?

A mass notification project comprised of 4 slightly modified radioshack 100W Powerhorns (cant tell how for patent purposes) An amp a weather radio and a control station. He can explian better.

Patent purposes?

Very nice, Havent seen a Modulator video in a while. Sorry this is a bit off topic, but Soccerdude are you getting my messages on email and youtube? It is either that you havent seen them or the messages arent going through. Dont think im impatient, but i am just very intrigued in your stormalert pr...

So you mean its a piston horn? Or does it have a legit compressor piped into a diaphram?

Those were mostly used in home/business security before piezoelectric sirens came into play.

Technically if it is used for warning of impending danger, it is considered a Civil Defense Siren. But it is just a PA speaker, probably on top of a church for announcing times. Or the town could be using it as a ghetto siren. But by the looks of them, they are most likely 25WRMS which, if put to th...

Old volunteer fire station in my town. ~1930

Heres a video of a 4 tone gent siren!

http://www.youtube.com/watch?v=JsbDgnS9HA0