Скачать или смотреть Synthesized Los Angeles Air Raid Sirens (Some of them)

Please keep in mind that these are NOT all the sirens that Los Angeles used during the Cold War. These were just all of the confirmed ones that used the 9/12 Port Rotors. Left siren is a Federal 500T, Center Siren is a Federal Model 5/7T, and right siren (which would perhaps be the most common of the sirens in LA) is a Federal SD-10 siren all manufactured and installed beginning in 1954. This is an example of what Los Angeles Civil Defense sirens likely sounded like during the cold war era. At least the 9/12 Port sirens. All sirens in Los Angeles have been disconnected from service since early 1985 and has never sounded off ever since. Couple still remain to this day but around 30 percent of the sirens have been removed. http://www.wirechief.com/sirens/artic...