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by Snowpix
Wed May 01, 2024 3:25 am
Forum: Main Outdoor Warning Sirens Board
Topic: Is it possible?
Replies: 8
Views: 132

Re: Is it possible?

That's what the first gen FS&S 500-SH basically is. The Thunderbeam as well, technically. https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Flive.staticflickr.com%2F3422%2F3907633370_c777c64ba2.jpg&f=1&nofb=1&ipt=841736e5693893b79f2b1fb59694178a22863a61df50bac2a7a15fa04c3975...
by Snowpix
Wed May 01, 2024 12:16 am
Forum: Main Outdoor Warning Sirens Board
Topic: Is it possible?
Replies: 8
Views: 132

Re: Is it possible?

It's been done numerous times. There's an STH-10 mounted upside down, a pair of first gen Federal Type Mach. Bs, a Sireno vertical, and a few others come to mind. https://media.discordapp.net/attachments/1157756572068483252/1232143534870626354/unknown.png?ex=663245d6&is=6630f456&hm=a12022fc9...
by Snowpix
Sun Apr 14, 2024 10:14 pm
Forum: Mystery Sirens
Topic: Ashby, MA Fire & EMS Department Mystery Siren
Replies: 2
Views: 343

Re: Ashby, MA Fire & EMS Department Mystery Siren

It's a Sterling 5VX.
by Snowpix
Wed Apr 03, 2024 1:44 am
Forum: Main Outdoor Warning Sirens Board
Topic: Vintage siren photos thread
Replies: 263
Views: 327706

Re: Vintage siren photos thread

Heath was so ahead of his time with his sirens, the rotors are like an STH-10's but 40 years before the STH-10 existed. And this had two of them!
by Snowpix
Mon Mar 25, 2024 1:00 am
Forum: Other Warning Systems - Indoor, Outdoor and Vehicular
Topic: How do non-siren horns work?
Replies: 6
Views: 6183

Re: How do non-siren horns work?

Airhorns such as the Diaphone use a vibrating diaphragm that's actuated by compressed air moving through it. It's quite similar to how our voices work, air moving through a diaphragm to create vibrations which result in audible sound.
by Snowpix
Mon Mar 11, 2024 12:58 am
Forum: Main Outdoor Warning Sirens Board
Topic: More Heath sirens in CA?
Replies: 3
Views: 320

Re: More Heath sirens in CA?

Looks like the period at the end wasn't being added to it, I'll fix the link. It should work now.
by Snowpix
Sun Mar 10, 2024 12:53 am
Forum: Main Outdoor Warning Sirens Board
Topic: More Heath sirens in CA?
Replies: 3
Views: 320

Re: More Heath sirens in CA?

Heath was very successful in California, there are far more than just 2 sirens built by the company. The Heaths you're seeing are mostly the Type K, which doesn't really have a specific design and each Type K looks slightly different from one another. There's an article on the CDS Wiki about Heath i...
by Snowpix
Tue Mar 05, 2024 7:20 pm
Forum: Siren Maps
Topic: Map of Sterling Sirens (past and present)
Replies: 23
Views: 36306

Re: Map of Sterling Sirens (past and present)

There's some kind of Sterling Denver like siren in Fitzhugh Oklahoma. 34.6669472,-96.7765621 Great find! That's a Sterling Duplex, and now the 4th known Duplex that's still in existence. It was right under our noses the whole time! Again I'm sorry for the bump, but is this the same as that one? htt...
by Snowpix
Tue Mar 05, 2024 1:11 am
Forum: Main Outdoor Warning Sirens Board
Topic: Sterling Identification Help
Replies: 9
Views: 2097

Re: Sterling Identification Help

There's a few ways to tell a pre-1928 from a post-1928, mainly if you look behind the stators. The post-1928 has a large ring behind the stator where the motor cover bolts to, pre-1928s lack this. Post-1928s also have the louvred vents on the intakes, most pre-1928s do not. Some pre-1928s do have ve...

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