it's pretty self explanatory please bare with me on spelling mistakes, theres no spell-check in the editor.
main source: wiki.airraidsirens.net image credits: - slide 2: SF57 - slide 3: SWMO Woodsman - KF0TRD - slide 4: Thunderbolt1000Tfan - slide 5: airraidsirens.net - slide 6: TrainsAndSirens1 - slide 7: Charlie Davidson tags: thunderbolt, siren, air raid siren, air raid, thunderbolt, siren, sirens, thunderbolt siren, tornado siren, tornado, thunderbolt 1000, thunderbolt 1003, jailbar thunderbolt, bumblebolt, 6m thunderbolt, 5m thunderbolt, 4m thunderbolt, b series, b series thunderbolt, c series, c series thunderbolt, c, b, a1, sa1, sa2, sb, sc, 1003sc, 1000asc, 1000bsc, 1000atsc, 1000btasc, bumblebolt 1003
