Technically, this one came from the factory mounted upside down.
https://civil-defense-sirens.fandom.com ... Denver.png

Back on the board again. What you’re looking at is in fact, a Darley STH-10. They have 10 or 12 port rotors (not sure), and have 10 horns i think. Usually they are white or bright red but this one appears to be faded red. Hope this answers your question! I'm pretty sure they only came in 12 port, l...

The CD logo was typically a decal that they would put on the siren. They usually used a highly adhesive sticker or glued the decal onto the siren itself. If you need it, here's an original CD logo you can use: https://upload.wikimedia.org/wikipedia/commons/8/88/Roundel_of_the_United_States_%281961%...

Map Uodated 3/9/24. https://www.google.com/maps/d/edit?mid=1QgGd3k0x9DwvYmT-hv33uyU_dRenKNA&usp=sharing Remember the 1919 location in Nogales, AZ? I think I may have found where it was... https://www.google.com/maps/@31.3265314,-110.945244,3a,15y,216.77h,96.1t/data=!3m6!1e1!3m4!1s6gqadW5nXAOrom...

Progress Update. Got the siren torn down yesterday. Rotor assembly will be sent off to the machine shop in the coming weeks. Overall it wasn't terrible to get apart. All but one bolt came out came out with some motivation from an impact. The final bolt refuesed to move, so I put a breaker bar on it...

I recently went to this siren for the noon test. Sadly, i was too far to hear anything as i know its damper is stuck. Is it still active? I know it's still there, as from the angle I was at from Jefferson Highway, i could see it. I would contact whoever owns the siren (building owner, city, etc.) a...

This is for the folks who think this is a fake/attention grabbing post lmao i was being serous and i understand why people thought it was fake but heres the evidence. :D You sure that they aren't talking about the Denver that's downtown? Don't forget they have the Quadruplex too. While this is conc...

Bump. Any new updates on this beauty?

Ahhhh ok well I know what to get from Edaan now, At least that confirms that they actually don’t exist, although it does make me wonder would it be possible with a 15 hp motor and the rotor and stator sets from a STH 10/STL 10 This is the closest you’ll probably get to hearing what one would sound ...

A Bullard siren exploded during testing, in 1941: https://www.newspapers.com/article/contra-costa-gazette-siren-explodes-duri/125059343/ Hold on a minute... So we obviously know that nowadays it is E.D. Bullard, but something struck me as a bit weird here. If you look closely, you can CLEARLY see t...