Model 3

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Model 3
A Model 3 in Kidron, OH at the fire department.
Company Federal Signal Corporation
Produced ? - Mid 1950's
Type Electromechanical
Sound output ? dBc at 100 feet
Horsepower 3

The Model 3 was a 3 horse power, mechanical, omni-directional siren produced by Federal Signal Corporation. It's essentially the smaller version of the Model 5. The rotor is 12 inches in diameter coming in 2 different port ratios: 12 and 8 port single tone. The siren was housed in a very simple enclosure that resembles an air vent found on building roofs.