The Federal Signal 3T22 and 2T22 are dual-tone, mechanical outdoor warning sirens made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. Both have a very recognizable design, with a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.

2023年7月10日 · The 3T22 in the picture is located in Geary, Oklahoma, and it is a typical 3T22 with a few horns missing. The "7/12" 2T22 was only concept art, and never existed.

On this page I try to explain how the Federal 3T22 and Thuderbolt 1003 sirens work. These two sirens are capable of doing and extra "Fire" signal because they can switch their high and low …

2015年2月7日 · A sweet 600th Video. Clyde tested both alert and attack. I had no idea attack would be tested, but wanted to do a distant video of this 3T22 where the dampers close upon activation.

2014年7月5日 · Located east of downtown by the RR tracks, this siren if anyone is unfamiliar with why this siren sounds like this, the dampers close upon activation and this is the result...more. Watch in 1080p....

2024年9月7日 · For anyone wondering this siren is located at the Zay...more. This siren tests every 1st Saturday of each month at 11:00 AM. This was almost a no go, the firefighters couldn’t get it to test,...

2025年3月21日 · The Model 2T22 and Model 3T22[1] (2 or 3 Tone, 22 horns/ports) are a pair of dual rotor omnidirectional sirens that were produced by Federal Signal over a span of nearly 40 years. These are some of the most well-known and iconic sirens with a distinctive sound and are still commonly found today.

2023年4月11日 · Not sure if I mentioned it or not, but Mullen Nebraskas 3t22 was removed and replaced with a 14v. This map is super cool! Here's some for Michigan: Ida - 3T22, replaced with a 2000R. Lambertville - 3T22, replaced with a 2001-130.

2021年1月1日 · For those who don't wanna watch the whole video, here they are: The only dimensions I don't know are the intake cone length and diameter (diameter seems to be the same as the motor), motor length/diameter, and the height of each chopper/rotor section (though its probably not much bigger than the aforementioned 4 1/2") Re: 3T22/2T22 Dimensions?

The Federal Sign & Signal (now Federal Signal) 3T22 and 2T22 are a 10/12 port siren with a distinct 12 horns on top and 10 horns on the bottom, thus the 22 in XT22. The number in the siren name (2 or 3) in means the signal number, although these can be programmed to …