During the Gulf War, Federal Signal sent a number of modified Thunderbolt 1003s to Kuwait to warn its citizens of an air raid. These were the system 7000 series and were only found in Kuwait. Later, …

4 days ago · The Thunderbolt 1003 utilizes a solenoid-operated mechanism placed in front of the stator cap which blocks one of the 2 ports in the horn—or both if desired—allowing for the siren to perform …

The Thunderbolt 1003 is a discontinued siren made by Federal Signal. It was made from 1959 to 1990. It uses two solenoids that are attached to the throat of the horn. Each solenoid has a gate that closes …

Dec 26, 2025 · Federal Signal Thunderbolt 1003 Tornado Siren Test, Full Alert, Berlin, WI 4/1/2025 RamFett 5.46K subscribers Subscribe

I was pretty surprised when I noticed it was a Thunderbolt 1003 because I had never seen a 1003 anywhere in Texas before. The city of Sherman had just installed a new siren system and had …

The Thunderbolt 1003 uses two solenoids that are attached to the throat of the horn. Each solenoid has a gate that closes off one row of ports on the stator. They are used to create alternating steady, …

Quick demo of HVAC Exploration's Thunderbolt 1003 Siren Info: Make: Federal Sign and Signal Model: 1003A Port Ratio: 5/6 Power: 240VAC Single Phase Blower: 1981 A2 4M Use: Tornado Siren...

Lastly, I received the chopper and solenoids of a 1003 removed from Warren, IL. This is the hideous single-tone rotor that arrived in this 1000T. Perhaps the siren's original dual-tone rotor failed, but …

Went to St. Paul, Nebraska to record their Thunderbolt 1003. My dad works with a guy from the fire department there and said they test the fire signal on the 15th of the month, so I had to go...

On this page I try to explain how the Federal 3T22 and Thuderbolt 1003 sirens work. These two sirens are capable of doing and extra "Fire" signal because they can switch their high and low tones off and …