The Siren Board

Apparently the Polish fire service (OSP) uses sirens on some of their rural stations. I found some of these videos and posted them to the Youtube siren group. Here's one of them:

http://www.youtube.com/watch?v=8rDqGYeGnh8

One video, which is actually a strange mini-film apparently made by a local OSP, shows a girl pushing (or simulating pushing) an ancient outdoor siren button and a brief closeup of the siren in motion.

http://www.youtube.com/watch?v=aPu90dv2y3A

interesting, sounds kind of like single-tone sentry sirens...

8 Port at 50hz

kanazo wrote:interesting, sounds kind of like single-tone sentry sirens...

Yes! Their sirens do remind me of a Sentry siren.

That siren sounds like an E57, so since it's running at fifty-Hertz current, it might be a nine-port siren.

Judging by the pitch, some of them have 9 ports (A note) and some have 10 (Bb note). I wonder whether these siren are made in Poland or are imported from somewhere like Russia?