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EOWS1212man
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Thunderbolt 1003- Pulse Wail

Wed Apr 08, 2015 7:21 pm

I am assuming it is for a fire call, no idea on a location. The signal timing is a little screwy. Please excuse the dog, even though it is kinda funny... :wink:



https://www.youtube.com/watch?v=THLWYUn5jf0
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sirendude2012
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Re: Thunderbolt 1003- Pulse Wail

Wed Apr 08, 2015 9:12 pm

Sounds like a stuck solenoid trying to do hi-lo.
THUNDERBOLT HAS BEEN SOLD

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SirenMadness
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Re: Thunderbolt 1003- Pulse Wail

Wed Apr 08, 2015 10:42 pm

So trippy! :o
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gman 1
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Re: Thunderbolt 1003- Pulse Wail

Thu Apr 09, 2015 12:37 am

The thunderbolt can be set do that.
Whatever you do, don't push that big red button🔴!!!

uncommonsense

Re: Thunderbolt 1003- Pulse Wail

Thu Apr 09, 2015 2:16 am

gman 1 wrote:The thunderbolt can be set do that.
No joke.

But listen: there's only one tone when it pulses. Not two.

There's a stuck solenoid as its trying to do whatever it's doing.
Last edited by uncommonsense on Thu Apr 09, 2015 2:21 am, edited 1 time in total.

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Tyler
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Re: Thunderbolt 1003- Pulse Wail

Thu Apr 09, 2015 2:19 am

I don't know what's up with it but in the video you can clearly hear it in its regular open state, then when it winds up again the solenoid sticks again. If you ask me it sounds like a solenoid is having some issues and wanting to stay closed.
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Re: Thunderbolt 1003- Pulse Wail

Thu Apr 09, 2015 2:48 am

Sounds like one solenoid is pulsing while the other is always on during each cycle. The spring can't be broken because I hear it dual-tone on the wind downs. Never heard one do that before. I wonder if one of the toggle contacts on the flasher unit is stuck closed? Other than the one in Valley Springs, SD where one solenoid was not working at all.
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Re: Thunderbolt 1003- Pulse Wail

Thu Apr 09, 2015 12:43 pm

Boys Town, NE had a 3T22 that would have its damper slam shut upon starting, could be something like that.
As for location, the only place that comes to mind is Long Island, NY

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Re: Thunderbolt 1003- Pulse Wail

Thu Apr 09, 2015 11:34 pm

Andys Live WX wrote:Sounds like one solenoid is pulsing while the other is always on during each cycle. The spring can't be broken because I hear it dual-tone on the wind downs. Never heard one do that before. I wonder if one of the toggle contacts on the flasher unit is stuck closed? Other than the one in Valley Springs, SD where one solenoid was not working at all.
No it only winds down in dual tone once early in the video, the rest is in the same tone that the one solenoid is producing.
My knowledge excels on the Federal Thunderbolt siren and SiraTone EOWS sirens. ¯\_(ツ)_/¯

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ver tum
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Re: Thunderbolt 1003- Pulse Wail

Tue Apr 14, 2015 11:36 am

That thing sounds weird...Definitely has some damper issues...

Interesting how it sounds like the blower is pulsing too, even though it's not. The blower noise heard from that distance is actually caused by the pulses of air from the blower hitting the air from the chopper.
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