2 posts
As near as I can tell, these extremely loud speakers were used in harbors back in the 30's and 40's. They ran on compressed air, were noisy and distorted. I would like to find a recording of one of these things.
Pooleside
www.steampoweredstudio.com
pneumatic siren ? ... http://commons.wikimedia.org/wiki/File:Motorsirene_-_Feuerwehralarm.ogg
2 posts