The Siren Board

10V2T wrote: *

Wed Jan 13, 2021 11:46 pm

Brendan W wrote: *

Wed Jan 13, 2021 11:33 pm

10V2T wrote: *

Wed Jan 13, 2021 8:18 pm

I believe you mentioned in your map of all the Thunderbolts that it was replaced with a Mod.

Which it was, the enclosure is still up there however. I believe it had the head removed and a mod mounted to it.

Oh, that's super interesting. I wonder why they didn't remove the enclosure.
Interestingly enough, I found 2 photos of the school with the Thunderbolt (The quality is atrocious on the 2nd one).

Here's a picture with the mod.

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1974 Model 2-120, 1983 Thunderbolt 1000B
21, Registered Skywarn spotter as of 4/29/18
Formerly TboltFan

Grifco - A manufacturer of sirens in Australia, went out of the siren business about 20 years ago, All of their models have under 10 remaining, and they are slowly being removed.


Model names:
999
888
773
666
663

I have photos of these if anyone wants these.

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Your Not So Local Australian Enthusiast! || Owner of r/AirRaidSirens on Reddit.

Owner of: Soon to be Owner of an AR Timer and potentially a Klaxon SO4
Sirens near me: None.

I would say the Federal Signal 500 SH-ST (I don't know if that is correct) is pretty rare. There are not many left.

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No. Just no.

-10V2T

Living in an area with scarce to no active sirens.

HOR SUPER SIREX

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Owner of: (Don't ask me why)
A Small demolition 110v siren,
Federal model A 110v,
Federal type 2 240v,
Federal 2001 DC roundback,
and a Harry O. Ricci Model 50 Super Si-Rex 10/10 port Dual Horn 3 phase.

Thought Denver Sirens were already on the list. Denver Quadruplex/Duplex sirens eventually led Interstate Machine products to produce the Sterling variants as well as the M series we all know. Denver sirens may well have been the first commercially produced electronically driven mechanical sirens in the United States.

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I was born and raised on diesel fumes and American V8 rumble.

H.O.R. Si-rex. 4 that I know of, one in Glenside, PA (inactive), one in the Midwest somewhere, and of course the 2 in Massapequa (the other silver one with a lot of louvers is a Super Si-rex S-15)

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Very proud owner of several different horns, an Edwards Model 312, an ACA Hooter rebrand, a MS-390, a JDW-145, possibly a 2T-240 and the only existing (as far as I know) W.S. Darley Model 7ATT.

I don’t think this is a rare siren so I’m not sure if this will be posted but there’s a rare tone recorded by the same guy (Gil Ramirez) of an EOWS 612 that performed a “whoop” tone in Barrington IL, here’s a link below

https://youtu.be/Pu7sWCXGlvg