Federal Signal 3T22 The Federal Signal 3T22 was an outdoor warning siren made by Federal Signal Corporation from 1952 through the early 1990s. It has a very recognizable design, having a ten-port rotor on the bottom with ten cones and a 12-port one on top with twelve cones.History The Federal Signal 3T22 was originally designed as the 2T22 in 1952 or 1954. The 2T22 had the same number of ports and cones. It could produce two main signals, hence the name "2T22". The siren had no solenoids, so it could not perform a "hi-lo" signal. In 1955, Federal designed the 3T22, which was similar, except for its name and that it had solenoids. The 3T22 was superior in design because it could perform the "hi-lo" signal, which is mainly used for fire calls. The 2T22 and 3T22 could produce 113db. There are four models of this type of siren. the 2T22 A and B and the 3T22 A and B. In the name 3T22, the 3 stands for its three main signals: attack, alert, and hi-lo, and the 22 again stands for the twenty-two cones. The A or B determined whether the motor was three phase or single phase . A 3T22A would be three phase, while a 3T22B would be single phase. The siren was mainly used for air raid warnings during the Cold War era and weather warnings after the war . In the early 1990s, the siren's production was stopped when it was replaced with the newer 2001-SRN, which could reach 126db, hence the name. Like many other older siren models, these sirens are becoming more uncommon due to their age and because of newer technology. Note: the prototypical design for the 2T22 was 7/12 port.Design The 3T22 came in only one port ratio: 10/12. It had ten ports and cones on the bottom and twelve ports and cones on the top. It also had a smaller cone on top to reduce rain and other water-related substances such as snow from getting inside. It had two solenoid boxes, one on top, and one on the bottom. There were also two air intake spots: also one on the top and bottom . The siren had a small stand with three legs so it could be mounted on a pole or roof. The stand could be removed and the siren could be mounted differently.Cities with 3T22s or 2T22s Moore, Oklahoma - 2T22 Clyde, Ohio - 3T22 Clarks Hill, Indiana - 2T22 Bethany, Oklahoma - 3T22 Sandy, Oregon 3T22 Grand Rapids, Ohio - 3T22 Genesee Township, Michigan - 3T22 Zilwaukee, Michigan - 2T22 Frankenmuth, Michigan - 3T22 Rhine, Georgia - 2T22 Pontiac, Illinois - 2T22 Atlanta, Illinois - 2T22 Ware Shoals, South Carolina - 3T22 Tamaqua, Pennsylvania - 3T22 Greensburg, Pennsylvania - 3T22 Harrison, Nebraska - 3T22 Albany, Kentucky - 3T22 Hampton, Nebraska - 2T22 Falls City, Nebraska - 3T22 Newcastle, Wyoming - 2T22 Ortonville, Michigan - 3T22 Honolulu, Hawaii - 2T22 Saint Leon, Indiana - 3T22 Russell, Kansas - 2T22, 3T22 Lakota, North Dakota - 3T22 Dixon, Kentucky - 3T22 Plentywood, Montana - 3T22 Hazen, North Dakota - 3T22 Tea, South Dakota - 3T22 Newhall, Iowa - 3T22 Halliday, North Dakota - 3T22 Turtle Lake, North Dakota - 3T22 East Williston, New York - 3T22 Kimball, Nebraska - 2T22 Zap, North Dakota - 3T22 Dillon, Montana - 3T22 Rugby, North Dakota - 2T22, 3T22 Dunn Center, North Dakota - 2T22 Thedford, Nebraska - 2T22 Bassett, Nebraska - 2T22 LaGrange, Kentucky - 2T22, 3T22 Atkinson, Nebraska - 2T22 Mayfield, Kentucky - 2T22 Cannelton, Indiana - 3T22 New Haven, Kentucky - 3T22 Bayard, Nebraska - 2T22 Holton, Kansas - 3T22 Amarillo, Texas - 2T22 Millhousen, Indiana - 3T22 Mound City, Illinois - 3T22 Anna, Illinois - 3T22 Sonora, Kentucky - 3T22 Hebron, North Dakota - 3T22 Hillsboro, North Dakota - 2T22 Salmon, Idaho - 3T22 Roundup, Montana - 3T22 Garrison, North Dakota - 3T22 Bottineau, North Dakota - 3T22 Centerville, Indiana - 2T22 Ames, Iowa - 2T22 Vernon, Connecticut - 3T22 Beulah, North Dakota - 3T22 Devils Lake, North Dakota - 3T22 Wichita, Kansas - 2T22 Velva, North Dakota - 3T22 Bowman, North Dakota - 3T22 Lancaster, Kentucky - 3T22 McCook, Nebraska - 2T22 Boys Town, Nebraska - 2T22 Harrodsburg, Kentucky - 3T22 Edinboro, Pennsylvania - 3T22 Mt. Washington, Kentucky - 2T22 La Platte, Nebraska - 3T22 Bolivar, West Virginia - 3T22 Fenton, Missouri - 3T22 Brooklyn, Wisconsin - 2T22 Perrysburg, Ohio - 2T22 Silvis, Illinois - 3T22 Accord, New York - 3T22 Colby, Kansas - 3T22 Louisville, Kentucky - 2T22 and 3T22 Reedsburg, Wisconsin - 3T22 South Glens Falls, NY - 3T22 West Fort Ann, NY - 3T22 Saratoga Springs, NY - 3T22 North Baltimore, Ohio - 2T22 Bridgeport, Pennsylvania - 3T22 Alburnett, Iowa - 2T22 Port Jefferson, New York - 3T22 Yaphank, New York - 3T22 Middle Island, New York - 3T22 Strausstown, Pennsylvania - 2T22 Setauket, New York - 3T22 Waterford, NY- 3T22 Sulphur Springs, Texas - 2T22 Morganfield, Kentucky - 3T22 Hollywood, Alabama - 2T22 Algonquin, Illinois - 2T22 Hebron, Illinois - 2T22 Clarendon, Arkansas - 3T22 Williamsburg, Iowa - 3T22 Los Angeles, California - 2T22 Cambria, Wisconsin - 3T22 Island Lake, Illinois - 3T22 Lake Crystal, Minnesota - 3T22 Mascoutah, Illinois - 3T22 Arlington, Kansas - 3T22
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