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SA Firefighter
General Discussion => Country Fire Service => Topic started by: J_Buss on October 23, 2013, 11:20:34 PM
Title:
CFS Sirens
Post by:
J_Buss
on
October 23, 2013, 11:20:34 PM
I always wondered how the sirens work, this is how:
https://airraidsirens.com/tech_howtheywork.html
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