tigerclaw64's definitions
A Civil Defense siren made in 1952.
Models
Thunderbolt 1000: single toned chopper that can do Alert and Attack signal
Thunderbolt 1000T: a dual toned version of the Thunderbolt 1000
Thunderbolt 1003: a dual toned chopper with solenoids that gives it the ability to do the Hi-Lo signal
Models
Thunderbolt 1000: single toned chopper that can do Alert and Attack signal
Thunderbolt 1000T: a dual toned version of the Thunderbolt 1000
Thunderbolt 1003: a dual toned chopper with solenoids that gives it the ability to do the Hi-Lo signal
by tigerclaw64 September 14, 2013
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