Actually they are bells. I didn't know but I thought somebody told me they where whistles.Federal Signal fan wrote:Interesting. Air powered, no less?
Cheers,
Joshua
The Milwaukee road had Prime PM-516 "e-bell" http://www.railpictures.net/viewphoto.php?id=21907
and PM-733 http://www.railroadforums.com/photos/sh ... ma/cat/595. Both are to the right of the horn.