500 Series: Difference between revisions
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The 500 Series was a line of [[electromechanical]] sirens produced by [[Federal Signal Corporation|Federal Sign & Signal]]. | The 500 Series was a line of [[electromechanical]] sirens produced by [[Federal Signal Corporation|Federal Sign & Signal]]. It went through a lot of prototyping, ranging from a coded unit that allows it to make a "pulsed" signal, along with variants of single and dual tone models, even different phase motors were tested. They finally settled on one design that was compact, yet effective. This model unfortunately was advertised as a "mid-range" siren by Federal, which in turn caused their [[Thunderbolt]] siren to outsell it by a long shot. The most powerful unit they made was the 10/12 port, 3-phase 500SHTT, meaning single head two tone. This model packed a punch and performed well past their advertised 120dBc rating, pushing 128 or more. | ||
[[Category:Sirens]][[Category:Rotating Sirens]][[Category:Electromechanical Sirens]][[Category:Single Toned Sirens]][[Category:Dual Toned Sirens]][[Category:Federal Signal Corporation]] | [[Category:Sirens]][[Category:Rotating Sirens]][[Category:Electromechanical Sirens]][[Category:Single Toned Sirens]][[Category:Dual Toned Sirens]][[Category:Federal Signal Corporation]] | ||
Revision as of 20:52, 28 January 2018
| 500 Series | |
| Company | Federal Signal Corporation |
|---|---|
| Type | electromechanical |
The 500 Series was a line of electromechanical sirens produced by Federal Sign & Signal. It went through a lot of prototyping, ranging from a coded unit that allows it to make a "pulsed" signal, along with variants of single and dual tone models, even different phase motors were tested. They finally settled on one design that was compact, yet effective. This model unfortunately was advertised as a "mid-range" siren by Federal, which in turn caused their Thunderbolt siren to outsell it by a long shot. The most powerful unit they made was the 10/12 port, 3-phase 500SHTT, meaning single head two tone. This model packed a punch and performed well past their advertised 120dBc rating, pushing 128 or more.