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  2. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    A Second World War-era Gents air raid siren, originally sited at RAF Uxbridge in Greater London. Unlike other Gents air raid sirens, this is a 10/12/15 tritone siren which gives off a unique warning tone.

  3. Chrysler Air-Raid Siren - Wikipedia

    en.wikipedia.org/wiki/Chrysler_Air-Raid_Siren

    The Chrysler Air Raid Siren is an outdoor warning siren produced during the Cold War era that has an output of 138 dB(C) at 100 feet. It was known as the Chrysler Bell Victory Siren during its first generation, which was between the end of World War II and the fall of the Berlin Wall. It is reputed to be the loudest air raid siren ever produced ...

  4. List of civil defense sirens - Wikipedia

    en.wikipedia.org/wiki/List_of_civil_defense_sirens

    Chrysler Air-Raid Siren; Sentry Siren; SiraTone This page was last edited on 5 August 2024, at 16:06 (UTC). Text is available under the Creative Commons ...

  5. Federal Signal 3T22 - Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_3T22

    A 3T22A is three phase, while a 3T22B is single phase. The siren was mainly used for air raid warnings during the Cold War era and weather warnings after the war. In the early 1990s, the siren's production was stopped when it was replaced with the newer 2001-SRN, which can reach 126db (also measured 100 feet away), hence the name.

  6. Air raid siren? Relic of the past? Here’s the truth about ...

    www.aol.com/news/air-raid-siren-relic-past...

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  7. After a brief all-clear was sounded, the air-raid siren was again sounded in all the oblasts starting from 11:40. OLHA HLUSHCHENKO - SATURDAY, 22 OCTOBER 2022, 11:50 a.m. Starting from 7:55 a.m ...

  8. Siren (alarm) - Wikipedia

    en.wikipedia.org/wiki/Siren_(alarm)

    In Germany and some other European countries, the pneumatic two-tone (hi-lo) siren consists of two sets of air horns, one high pitched and the other low pitched. An air compressor blows the air into one set of horns, and then it automatically switches to the other set. As this back and forth switching occurs, the sound changes tones.

  9. Air-raid siren throughout Ukraine: Russians launch missiles - AOL

    www.aol.com/news/air-raid-siren-throughout...

    As of 13:41 on 5 December, an air-raid siren was sounded in most regions of Ukraine due to the threat of Russian missiles. Source: Alarm Map Details: The head of Odesa Oblast Military ...