What is Thunderbolt siren?
The Thunderbolt siren was a supercharged electromechanical siren produced by Federal Enterprises, which later became known as Federal Sign & Signal, and finally Federal Signal. This siren went through many changes throughout it’s life, and made quite a reputation as one of the best sirens in the market.
How does a Thunderbolt siren work?
The Thunderbolt siren pumps a large volume of low pressure air through it’s chopper rotor with the blower to increase the sound volume coming out the horn. This Thunderbolt 1000 that I restored is a single tone siren with with a rotor with one row of 5 openings. The dual-tone Thunderbolt chopper has 2 rows of slots.
When was the Thunderbolt siren made?
The Federal Thunderbolt was the siren of choice by many Civil Defense authorities and emergency management agencies from the early 1950s through the late 1970s. Production ended in 1990 (Though allegedly they could be ordered until the early 90s), and it is estimated that approximately 16,000 units were produced.
What’s inside a Thunderbolt siren?
The Thunderbolt siren consists of three major parts: the blower, rotator and siren chopper. The chopper is located in the cylindrical housing that the horn/projector attaches to at the top of the siren.
What kind of Siren is the Thunderbolt 1003?
A Thunderbolt 1003. The 1003 was a rotating siren by Federal Signal in the 1950s and was a variant of the Thunderbolt model with solenoids that has the 4/5 port chopper and the 5/6 port chopper. The Thunderbolt is very similar to the ACA Hurricane, and the only model that can do the Fire/Hi-Lo signal.
What are the solenoids on a Thunderbolt 1003?
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, alternating wail, pulsed steady, and pulsed wail signals, which can be used as a fire warning.
Is there a DESC for Roblox Thunderbolt 1003?
Roblox: Thunderbolt 1003; All 3 Signals. (Read Desc) If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.
What’s the port ratio on a Thunderbolt 1000T?
The 1000T came in 4/5 or 5/6 port ratios, which correspond to minor 3rd and major 3rd intervals, respectively. 4/5 variants are typically found in some of the oldest 1000T models, where 5/6 later because the standard around 1958/1959. The Thunderbolt 1003 uses two solenoids that are attached to the throat of the horn.
