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The ACA Allertor was a electronic/mechanical siren manufactured during the 1970's and 1980's. when in operation, air is sucked in through a air intake, (round open section where blower fans are at) and shot through the horn at top for the sound output.
The ACA Allertor was a electronic/mechanical siren manufactured during the 1970's and 1980's. when in operation, air is sucked in through a air intake, (round open section where blower fans are at) and shot through the horn at top for the sound output.
Category All / All
Species Unspecified / Any
Size 911 x 942px
File Size 665.9 kB
http://www.jmarcoz.com/sirens/sirenarchive.htm airraidsirens.com civildefensemuseum.org. There's some linkage for ya!.
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