Beginning in the late 60's, the electronic siren began to replace the mechanical siren. Later, electric motor driven sirens were widely manufactured by Federal Signal Corp, Sireno, Sterling and a few others. ![]() They were manufactured by the Sterling Siren and Fire Alarm Company in Rochester, NY B&M in Los Angeles and a few others. The first were driven with a hand crank or driven by the vehicles tire or fan belt. The mechanical siren was used on police vehicles, ambulances, fire apparatus and other emergency vehicles beginning in the early 1900s.
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