Instruction Video: https://www.youtube.com/watch?v=XAfvOjdZpkg https://www.youtube.com/watch?v=XAfvOjdZpkg > NOTE: If you know other cheap designs of DIY Air R

Instruction Video: https://www.youtube.com/watch?v=XAfvOjdZpkg https://www.youtube.com/watch?v=XAfvOjdZpkg > NOTE: If you know other cheap designs of DIY Air Raid Siren easy to build, PLEASE, post links to instructions under this comment. JFTR, I'm Ukrainian living in Ukraine. Here is my statement for HN:[0] + Verified Ways to Help Ukraine - https://euromaidanpress.com/2022/02/27/verified-ways-to-help-the-ukrainian-army/ https://euromaidanpress.com/2022/02/27/verified-ways-to-help... + My Patreon - https://patreon.com/app4soft https://patreon.com/app4soft [0] https://news.ycombinator.com/item?id=30395897 https://news.ycombinator.com/item?id=30395897