The Federal 2t22 is probably one of the nicest sounding of all the mechanical sirens. This siren was removed and sold at auction in late 2004. Federal 2t22 Alert Signal. Steady Tone. 1st part …

The Federal 2T22 siren is a dual tone siren, which is made up of one 12 port siren (high tone) on top of another 10 port (low tone) siren with the electric motor in the middle. Federal added air …

An example of this type of siren is the Federal Signal 2T22, which was originally developed during the Cold War and produced from the early 1950s to the late 1980s. This particular design …

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 …

Here are the 22 horns that make up the sound projecting parts of the 2T22. There are 12 horns on top and 10 on the bottom. Once the horns are removed from the siren it's pretty easy to move …

2023年4月11日 · Othello, wa at city hall. Still active. A large number of FS and FE sirens were installed in towns and even random rural areas around Hanford nuke site in the 40s-60s. Most …

2012年4月30日 · 可使用于： 世界各国大城市的民防警报系统 社区，工地，矿山，建筑物等消防警报系统 水库大坝、监狱、机场、部队等突发事件强音响报警 1.2 电动警报器主要由电机装配 …

2009年5月19日 · Here is what I can remember about the 2t22 of the top of my head. weighs about 700 pounds with the pole mount attached. Busgeek71 wrote: I just wondered, does anyone …

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2023年10月8日 · Because of its duel-tone sound and its total of 22 horns, the siren was called 2T22. Federal Signal had another version called the 3T22, which produced a high-low signal …