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3T22 'crashing dinner plate sound' during wind-up

https://airraidsirens.net/forums/viewtopic.php?t=27853

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3T22 'crashing dinner plate sound' during wind-up

Posted: Fri Sep 17, 2021 7:02 am
by floor-a-matic
why did the 3T22 make the "crashing plate" sound in the beginning? Is that normal or did the 3T22s need repair?

Brett Jones 3T22 recording
http://civildefensemuseum.com/sirens/so ... ighlow.mp3

The "crashing ceramic plates" sound can be heard on the sound clip

Re: 3T22 'crashing dinner plate sound' during wind-up

Posted: Fri Sep 17, 2021 11:02 am
by HudsonRiverSirens
That's the noise of the solenoid closing.

Re: 3T22 'crashing dinner plate sound' during wind-up

Posted: Fri Sep 17, 2021 6:36 pm
by CanadianTbolt1003
10V2T is correct its the solenoid and there is a piece of metal/lip edge on the inside of the intakes of the 3T22 for the solenoids as can be seen in this photo -- https://bit.ly/3lDdEsE and the solenoids bang against that and that is why you hear a clanging sound because each time one solenoid closes it hits that lip and it clangs.
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