National "LAKE" Time & Signal Type-P804 (Trouble Bell) test.

Here is my Natsco P804 (4inch) alarm trouble bell. This was used on an old Natsco system that contained Natsco 331s and Natsco 311s with Natsco 3500N Break Glass stations. The panel was unfortunately gutted completely but we took the cabinet and it's now owned by ‪@FyrFyter‬!
Hope you enjoy the video.

[@FyrFyter]

Very nice ring that bells makes!!