Thunderbolt: Difference between revisions
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== Thunderbolt 1000 == | == Thunderbolt 1000 == | ||
The [[Thunderbolt 1000]] is a Single-tone supercharged siren that is part of the [[Thunderbolt]] Siren series. | |||
== Thunderbolt 1000T == | == Thunderbolt 1000T == | ||
Revision as of 01:33, 13 December 2013
The Thunderbolt siren was a supercharged electromechanical siren produced by Federal Electric, later Federal Sign & Signal and Federal Signal.
Thunderbolt 1000
The Thunderbolt 1000 is a Single-tone supercharged siren that is part of the Thunderbolt Siren series.
Thunderbolt 1000T
Thunderbolt 1003
The Thunderbolt 1003 uses two solenoids that are attached to the upper portion of the siren to create a third, high-low signal, which can be used as a fire signal.