Older Allertor Videos?

[JScott]

My introduction to sirens was in Jefferson City, Missouri, where my family lived from 1969 until the mid '80s.
At that time, they were using the chain/belt driven Allertors, with the angled arms from the motor to the base. The things I most noticed about them were: 1. they were two-tone, high pitched; and 2. they took _forever_ to wind up to full speed(6 to 8 seconds). On the other version of the board, there were at least two recordings of Allertors that sound like this, one of which was from Mason City(Iowa, I believe). This is what I remember an Allertor sounding like! Also, about halfway through the song, "My Guy," a short motif of the theme of "Canadian Sunset" is used as an interlude--it sounds *exactly* like "my" Allertor!
As I was moving to CA, they started to replace the Allertors(until I found this site a couple of years ago, I didn't even know they were called that!). One day, I guess because they got tired of fixing them(the rotators kept breaking), they replaced one with a 2t22 or 3t22. Unfortunately, I never got to see or hear it in action.
My question is: Is there a video of one of these older Allertors working, especially one that takes so long to wind up? And, what is the port ratio of these high-pitched Allertors?
Finally, people ask if anything can come out of the intake "horn" when the siren is working. I can attest that the answer is "yes." I was once standing about a quarter of a block from a siren during the monthly test(first Thursday at 4pm). Even that far away, with the siren pointing to my left, at a 90 degree angle from where I was(broken rotator!), my ears were ringing! Suddenly, a piece of something(paint flaking off, leaf, who knows)shot out of the "horn" and flew about fifteen feet onto the street(siren was at the corner)! Unbelievable!
People on the board ask what is the scariest siren sound they ever heard. For me, one of these with the long wind up, especially at a distance, is #1.
Thanks,
Jon in Sacramento, CA

[Hacksaw]

The 2 tone ones had a 9/12 port ratio for the perfect 4th types. Thet also had
at least a major third ratio 2 tone.

I'll send you my sound clip someone recorded of a perfect 4th Allertor.

They do have some Tbolts(active!) & P-10s(inactive, Rancho Seco Nuclear plant) around Sacramento.

Tarrant Co., TX Allertor test:
http://www.jmarcoz.com/sirens/ArlingtonTxAllertor.avi

Inside an Allertor:
http://www.sirens-for-cities.org/aca_allertor.htm

Allertor photos:
http://www.homepagez.com/sirenmuseum/aca.html
http://www.civildefensemuseum.com/sirens/sirenpx4.html
http://www.jmarcoz.com/sirens/hoffmanestates_il.jpg