The Siren Board

Yup. There's finally a video of one of these.



https://www.youtube.com/watch?v=XoHC3hyFqVU

Thank you! On my last two trips to Australia I'd hunted for these to no avail. I believe they were made there in the 40's.

I just discovered an omnidirectional variant of this siren. It appears that this city has a system of them.
https://www.google.com/maps/@-7.8135441 ... 6656?hl=en

The sound it makes is very eerie.

That thing puts the 8RPM Thunderbolt/2001 to shame!

I had always been told these were 12/14 port dual tone and rotated at a more normal speed... guess not. Is this the same siren seen in that other picture of a siren on a tower? Also, the doppler effect makes it very creepy.

Jesus, How fast is that thing going? I have a feeling like that Horn is going to come off

That's hilarious that it sounds like it's almost saying "WE OUT" but it's actually saying "WE-OW, WE-OW"

It appears to be rotating off of a clutch attached to the motor shaft, which explains the speed and weird pitch warbling.

I will say this: I couldn't believe the speed it was rotating at.