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  2. Thunderbolt (siren) - Wikipedia

    en.wikipedia.org/wiki/Thunderbolt_(siren)

    Although the 4/5 port rotor is compatible, it was never offered for the 1003. There were also 3 types of gas powered Thunderbolts known as the System series, System 7012 is a model Thunderbolt 1000, System 7022 is a model Thunderbolt 1000T. It is identical to 7012, but has a dual-tone chopper. System 7026 uses a model Thunderbolt 1003.

  3. List of sirens built by Alerting Communicators of America

    en.wikipedia.org/wiki/List_of_sirens_built_by...

    Started off using a direct drive 25HP Roots blower with a square horn, redesigned to a belt drive 30 HP blower with round horn. All known recordings are 8/10 port ratio. This siren is similar to Federal Signal's Thunderbolt series. Only a single unit remains in service in Milwaukee, WI. Screamers Electro-Mechanical 2, 5, 7.5, 10 8, 9, 9/12, 10/12

  4. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    Federal Signal Model 5 in Ballston Spa, New York, U.S.. Sirens are sometimes integrated into a warning system that links sirens with other warning media, such as the radio and TV Emergency Alert System, NOAA Weather Radio, telephone alerting systems, Reverse 911, Cable Override, and wireless alerting systems in the United States and the National Public Alerting System, Alert Ready, in Canada.

  5. Atherosclerosis: What Men Need to Know About Plaque ... - AOL

    www.aol.com/atherosclerosis-men-know-plaque...

    Atherosclerosis happens when a fatty substance called plaque builds up inside your arteries. There are typically few noticeable symptoms until the situation becomes dire and you experience ...

  6. 10 Vintage Salt and Pepper Shakers That Are Surprisingly Valuable

    www.aol.com/10-vintage-salt-pepper-shakers...

    Listing price on eBay: $2,500 There were countless Japanese-made, cartoon-like ceramic figurines made during the 1950s, and some of the most valuable (and collectible) are vintage salt and pepper ...

  7. Is anyone going to beat the Lions in the NFC? It might be ...

    www.aol.com/sports/anyone-going-beat-lions-nfc...

    The 5-4 49ers wouldn't be a wild card. But there is time to go this season. And the 49ers are still scary if they can ever hit their ceiling. San Francisco just got Christian McCaffrey back, and ...

  8. List of civil defense sirens - Wikipedia

    en.wikipedia.org/wiki/List_of_civil_defense_sirens

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  9. Federal Signal Model 2 - Wikipedia

    en.wikipedia.org/wiki/Federal_Signal_Model_2

    The Model 2 features a 2 HP universal motor powering a single-tone 5-port chopper motor, which was also used on the Thunderbolt 1000, another siren once made by Federal Signal. It can produce 3 signals at 102 dBC: Alert (Steady) Attack (Wail) Fast Attack (Fast Wail) The Model 2 is 25.5 inches tall by 12 inches wide, and weighs 68 lbs.