Whoa. It looks almost like a smaller rotor within a larger one. It vaguely reminds me of the rotor of a P-50. Do you know when Ian and Jeb plan on working on that thing?DJ2226 wrote:Credit to Ian M. This is the one from Byron, GA.Тһundеrbοlt1000Tfan wrote:Are there any photos of the chopper and stator of a 500SH-TT online?
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Тһundеrbοlt1000Tfan
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Re: Federal Enterprises 500 Siren.
Owner of a Federal Sign & Signal Model J siren.
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GabrielFairchild
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Re: Federal Enterprises 500 Siren.
Great Article!
Proud owner of a fully restored Federal Signal Model 5AT, Federal Signal Model D, and a bunch of small alarms and sirens.
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Snowcube
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Re: Federal Enterprises 500 Siren.
The 10/12 version is probably my most favorite siren. It just has a beautiful smooth sound.
Is the new 508 related to the 500 series in any way?
Is the new 508 related to the 500 series in any way?
Owner of a 1968 10/12 port 3 signal ACA Allertor 125 and too many mini sirens.
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Chicagosiren-hunters
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Re: Federal Enterprises 500 Siren.
As far as I'm concerned, no. IIRC, 500 in "508" is the intended Hz and 8 is for port count.
Proud owner of a prototype Denver (or something like that), Fedelcode Mach. 3 (dual rotor), Model 2, 4 A’s, B9W, 2 D’s, J, RX, 76A, Interstate Machines F, W.A. Box BOXCO, Sparton 35, & Darley C987
>>> Track Forward >>>
>>> Track Forward >>>
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FS Rotor
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Re: NNN/AAAAAAA
It seems the info has been removed, same with the Biersach & Niedermeyer article. Is there any reason why?
Proud owner of a 4/5 Thunderbolt, Federal Sign & Signal SD-10, large Heath Engineering Siren, and a bunch of smaller sirens.
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