As far as I know, I have not heard of any siren systems where the siren sites are linked directly into a NOAA weather radio system, without human intervention or a relaying system. Most siren systems that are radio controlled (as most are now) activate either by two-tone, DTMF, or FSK. In most cases...

That siren has what looks a lot like a Sterling base on there, so my guess would be that it's a 1/2 Little Giant (Tiny Giant?).

I know it's old, but to add onto the Thunderbeams in CA issue, I went on an airport fiasco between SJC, OAK, then SFO, but ended up flying out of SFO. After taking the CA 92 (San Mateo) Bridge across the Bay, we were on a ramp to go north on the 101 when I took a quick glace up and to my surprise sa...

Just to spice things up a bit, a document from 1962 listed the following warning sirens in a 40-mile diameter Washington area: 27 Chrysler Sirens 6 Gasoline Biersach & Neidermeyer Sirens 194 Thunderbolts (20 more Thunderbolt to be added) Nothing has really been mentioned about Chryslers in the D...

http://www.google.com/search?hl=en&q=vi ... tnG=Search

http://www.vikingelectronics.com

I'm going through some more notes of mine and I'll add those as I come across them. You also mentioned a siren in Torrance 6 years ago or so. Do you remember where it was and if it's still there?

There is a lot of info circulating around back and forth about various sirens in cities throughout LA County, so I thought it would be helpful to organize everything together. This list is for sirens in every area outside of Los Angeles city limits. I have a map with the exact city limits that I am ...

Also remember that if you were a civil defense director for a city, you would be presented with the 2 main air raid sirens from Federal and ASC- the Thunderbolt and the Allertor. *Both dual-tone version have a 125 dB rating (at some point, though there were fluctuations). *The Thunderbolt has 3 moto...

Chicago also had Chrysler Victory Sirens, Chrysler Air Raid Sirens, and H.O.R. sirens.

Single tone Model 2s have a simpler casting process.