The Siren Board

Found this old full length Japanese film about an air raid on youtube. https://www.youtube.com/watch?v=ipPKW0Wq6PI Has a close up of a siren with audio (siren shown is a Hankoku turbo siren) at 50:43, and more audio at 1:07:50, with a lower tone siren as well as a siren that sounds like the earlier one. The sounds don't necessarily go with the picture, but given the era of the film, there is a good chance that one of sirens heard is a turbo siren. Seems like they were fairly common in Japan in the WWII era. Haven't been able to track down any other videos of Japanese turbo sirens, aside from a close up video of one on youtube that was deleted years ago.

Hey, isn't that this siren by the way?

This is the only video i've been able to find of one of the pneumatic sirens


https://www.youtube.com/watch?v=5THz1jbt6nI

Synther wrote: ↑

Tue Jan 12, 2021 3:45 am

This is the only video i've been able to find of one of the pneumatic sirens


https://www.youtube.com/watch?v=5THz1jbt6nI

That one is actually just a regular motor siren, not supercharged. The supercharged "turbosirens" are like the one Sheppardpat posted a picture of above, look very similar but have a smaller chopper assembly, and a large duct running from a blower assembly on the bottom of the siren into the chopper intake on top.