So do those 2 horns rotate when it goes off? Or are they stationary?

Honestly if you look at this mislabeled photo of this P50 siren"supposedly" in Amarillo, you can see it has the same mounting plate as the one in the video, so it looks like a few of these early P50's were installed.

https://youtu.be/YlBAyV2q7xY

Here's a link to the video, the P50 information part starts around 14:30.

I found this photo while browsing through images on Google. I think this is pretty epic due to the Thunderbolt hovering over the technician. This picture was from back when Omaha Nebraska had a system of Thunderbolt sirens. They were replaced back in 2002 with ASC T-128 sirens due to failures and ma...

Thought this one was pretty neat, it's one of 4 Thunderbolt 1003's in Scottsbluff

Funny, this P50 that is mislabeled being located in Amarillo looks exactly like the prototype in the video, same mounting platform.

That strikes me as odd because the Thunderbolt 1003's we have in Scottsbluff Nebraska have 2 cabinets and then a grey cabinet as shown in the picture. I'm guessing our Tbolts aren't equipped with a siratrol? They were installed in the mid 70's and were used for fire calls along with weather and civi...

I do understand the Westminster Chimes sound different on the Ultravoice controllers compared to the Siratone Controller. But what I am asking is why does a EOWS 1212 chime with Siratone controls sounds on key compared to an EOWS 612 with Siratone controllers as well. If you look up a 1212 doing the...

Hello all! I just had a quick question in regards to the Westminster Chime tone module in the Siratone controller. Why does the 612 chime sound so off key but when the chime plays on the 1212 it actually sounds like Westminster Chimes. Just curious as to why they sound different. Apologies in advanc...

So why did the city of Sherman take it back?