San Onofre Nuclear Generating Station (SONGS) former mystery/custom engineered siren FOUND!!!!

[Model L]

WOW
this is the real stuff
over 5 years of false leads from random people...
but now we have this!
can't wait to hear it!

[SiraTone]

This is gotta be the most epic find ever. I keep forgetting about that video but for the horns I would base them off the patent drawings as much as possible. I’m pretty anxious to hear what one finnaly sounds like. What work besides having the horns made needs to be done on this thing?

[Duderocks5539]

This is gotta be the most epic find ever. I keep forgetting about that video but for the horns I would base them off the patent drawings as much as possible. I’m pretty anxious to hear what one finnaly sounds like. What work besides having the horns made needs to be done on this thing?

It needs two motors ,for the rotor its a 1 HP pool pump type motor (single phase 240 V) and for the blower a 5 HP TEFC motor (single phase 240 V) The siren is 300 HTZ and is 120 DB at 100 FT.

[Duderocks5539]

Here is the spec sheet and a blue print for installation.

[Brendan W]

Do we have any ideas as to what one of these would've sounded like in service?

[Duderocks5539]

Do we have any ideas as to what one of these would've sounded like in service?

He told me that they were 300 Hz. Mine is the same siren as the ones that were down there ,but without the horns.

[FahmiRBLX]

So this siren is Hi-Lo Capable? Exited to hear it sound all three signals, but wait, is it Alternate Wail-Capable? In my logic, if it's Hi-Lo Capable, of course it could sound Alternate Wail. And I'm also curious, if this siren works the same manner as a Thunderbolt and a Hurricane, meaning it has a typical Chopper/Rotor w/Stator and a blower to pump in more air?

[FSThunderboltfan1000]

So this siren is Hi-Lo Capable? Exited to hear it sound all three signals, but wait, is it Alternate Wail-Capable? In my logic, if it's Hi-Lo Capable, of course it could sound Alternate Wail. And I'm also curious, if this siren works the same manner as a Thunderbolt and a Hurricane, meaning it has a typical Chopper/Rotor w/Stator and a blower to pump in more air?

Not trying to be mean or anything, but take a good look at that rotor on the siren it is a single tone rotor so no this siren will never sound any sort of high low signal. The sirens if rigged right could theoretically be capable of doing pulse, but not high low.

[FS Rotor]

So this siren is Hi-Lo Capable? Exited to hear it sound all three signals, but wait, is it Alternate Wail-Capable? In my logic, if it's Hi-Lo Capable, of course it could sound Alternate Wail. And I'm also curious, if this siren works the same manner as a Thunderbolt and a Hurricane, meaning it has a typical Chopper/Rotor w/Stator and a blower to pump in more air?

The rotor has no vanes, it relies completely on the centrifugal blower to produce sound. Hence making it pneumatic.

[Chicagosiren-hunters]

I have a theory as for the High-Low signal: I remember seeing a siren from a foreign country (I sadly cannot remember where) that ran a "mock-up" High-Low by altering the voltage going to the motor; full speed for the high, and a lower voltage for the low. There may have been a transformer attached to a timer that alternated between full and partial chopper voltages to make a fire signal.