The Siren Board

Discussion of Outdoor Warning Systems
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 Post subject: 7/10 ratio siren clip
PostPosted: Sun Dec 06, 2020 8:13 pm 
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Joined: Wed May 17, 2006 11:38 pm
Posts: 1219
Real Name: Mike H
Location: San Jose, CA
Happened on what sounds like a 7/10 port ratio siren, 4:40 in here:

https://youtu.be/b114xlklDVg


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