2) What all 10/12 port sirens had one dual tone rotor like the 500T/Mobil Directo, rather than two separate single tone rotors like the 2T22? It seems like the vast majority of 10/12 port sirens out there were of the two-rotor type. The Federal Model 500SH TT came with a 10/12 port rotor. The later...

So two years have passed since I posted this, and I'm giving it a bump with hopes that more of these questions will have some light shed on them.

this came from my firehouse took it down do to motor stop working. i know it was at the old firehouse and was moved over to the new one a long time ago. trying to get it back up and runing. Oh wow, I'm right down the road in Altoona. Good luck getting it back up and running! Let us know when it's g...

I'm pretty sure this video is the entire reason we know such a thing ever existed.

Man I really must not pay enough attention to what's posted. The new post icon isn't working right for me, as there are plenty of topics I've never seen that display I've already read them.

This is, in my opinion THE best recording of British 10/12 sirens in existence at this time.


http://www.youtube.com/watch?v=O5amecYD ... re=related

And weren't the gas powered MDs 8 port single tone?

I still think the louvers are a bit too close for it to be a Model 3. It could just be me. http://www.youtube.com/watch?v=iiA-2fOwpl8 Oh BTW, what's up with that light post twitching like that? It's some sort of processing that compensates for the camera getting shaken around. Look how smooth the m...

My dad took me to this one today since Del City had a parade and wasn't going to take another chance. Soon found out it was an 8 port. Now, I'm looking for a 12 port 5 to record. Yes the siren is rocking back and forth a lot in the wind. http://www.youtube.com/watch?v=zBa8gl2Am9Q By the sound of it...

sounds like the siren in the silent hill movie! That's because it IS the siren used in the Silent Hill movie. Even though if one of these were spun up in America it would sound very different. Other recordings of this French "Silent Hill" siren. It creeps me out even listening to these. h...