Clm Air Raid Siren
Despite its esthetic shortcomings and unhappy associations city of north vancouver councillors concluded monday that the citys cold war era air raid siren is a piece of history worth keeping.
Clm air raid siren. Full power run up of clm siren on sept. The clm was a canadian warning siren made to alert those incase of a attack from the ussr. By use of varying tones or binary patterns of sound different alert conditions can be signaled. The clm siren is a very mysterious air raid siren indeed.
This is a test of my 1950s omni directional clm air raid siren. Its a single phase 220v siren. Community content is available under cc by sa unless otherwise noted. As of 2013 there is one known clm siren in operation.
This siren hasnt been run for 30 years and the motor needs a bit of work. Published on dec 12 2010 this is my clm air raid siren. No one knows of its exact sound for certain. This is the first recording of a clm siren on the internet and the first glimpse of what the insides look like without the horns.
I am running it off. It is believed and i believe so too to sound much like the famous minor third sounding 3t22. 12v automotive air raid siren horn car truck vtg motor driven fire rescue u o4n9. 11 2013 motor is 5hp 220v 3 phase 3500rpm 1012 porting manual switching for 3 pulses of attack followed by 15 seconds of alert.
12v air raid siren horn tornado alarm motor driven police fire classy 110db new. Hand held camera at 30. The siren was mounted on a tower in victoria park in 1960 to warn residents in the event of a soviet nuclear attack. Electronic sirens can transmit voice announcements in addition to alert tone signals.