I'm a cop, and I have always loved the sound of the old mechanical sirens, and was never quite sure how they worked, so thanks!

that huge speaker is probably from an eows siren

11:43 lol the bearings are angry

For mechanical sirens, sound does come out the front. In a mechanical siren like the one you have there, it looks like it's forcing the air out the sides with centripetal(centrifugal?) force, and then shutting off the outlets, creating pressure waves on both sides of those holes, which makes sound come out both the holes, and out the front.

This is one of my favourite vids👍👍

I installed small sirens inside the cab of my mustang in the mid 90s called main generators; attached with my alarm system. They were brutal.

Loved it, my grandson wanted to watch because he is OBSESSED with Tornado sirens and went crazy after your last one! But I wanted him to see how they work so we have subscribed to your channel because you said you had an actual warning siren that you were going to show us how it work in the near future! And your first siren sounded like a car alarm on steroids! LOL We will be back soon Thank for posting this , made my grandson happy :)

That huge speaker he pulled out is called a, "Atlas Speaker". There are two kinds. The dual driver and the single driver. They would usually be found on the, Federal Signal E.O.W.S. series sirens. The E.O.W.S. "SiraTone" controllers would have "amplifiers" which amplify the sound coming out of the speaker. The rotating E.O.W.S. sirens "408,612,816" would have 4,6,8 dual dual driver speakers facing one way. When the siren activates, the speakers would rotate on a big box. The non-rotating E.O.W.S. sirens "1212" would have 12 single driver speakers facing all ways. There are 6 sides with 2 speakers. The E.O.W.S. 1212 prototype (115) has different speakers but acts similar to the normal 1212. All E.O.W.S. sirens have been discontinued.

"We're goin' to grab some BIG volts" "Oooooh!"

Did anyone else find this when they were like 6 and have just now found it again

I thought I was the only one with a strange obsession with tornado sirens. ; )

Can't wait to see the RM-130 siren. Great video, there are some videos of the Chrysler siren on youtube.

1:28 is me when my schools new fire alarm goes off.

we've got a siren just like that on our team's robot! Out of all the donations to our team, i think that siren was the best one.

I think I just found out why I like sirens. I like them because when they go off, that usually means "SHIT JUST GOT REAL".

Great video. I really want a big horn speaker like that! Hard to just come accross at random hehe :) All in all, I am inspired by your experimintations and explanations. I wish I was closer to MI, I would love to volunteer for you! The lady Vicky looks allot like my librarian from when I was in school, lol

Kept me entertained for 14 minutes and 15 seconds. How? I have no idea.

Where did you get those massive compression drivers? Off an EOWS?

That big speaker with the 2 sound devices is used in an EOWS 612 6 speakers 12 drivers

I recognize those big things. Those big horns look to be from one of federal signal’s “Emergency Outdoor Warning System” (EOWS) 612, 812, or 1212 tornado sirens.

OMG it's one of the speakers of the EOWS 612. I recognized that when I first saw it

Good Shew, enjoyed it

The neighbors must love these guys

Oh most of the Chrysler Air Raid Sirens were Flat Head 331 Cu In Gasoline Engine, they were essentially an Engine mounted to an over centre clutch that drove the Vane impeller to produce the sound.

There is a EOWS speaker, did dey get it from WSS? (West shore servicrs

Gotta love the EOWS 612 horn he pulls out

that's so cool!

The mechanical siren reminded me of a Q2B siren

I took a old ww2 air raid siren down out of a old foundry that was being demolished and rewound the stator for 240 volts instead of 3 phase 480. Its works awesome and is extremely loud with twin choppers. It more or less looks like a huge bench grinder with a chopper on each end. 👍

If Jessica likes loud, obnoxious noises, she should love the sound of town fire whistles!!! Those things make tornado sirens seem like a trumpet solo for a high school band!! I'm originally from MA, and there was a fire whistle in every town. Our fire whistle went off routinely at noon, 5pm, and at either 9pm or 10pm for curfew. For an ambulance it went off once, for school cancellations it went off twice then twice again, for auxiliary fires it went off five times twice, and for local fires it first blew three times and then blew the box number (for example, Box 57 would be five blows followed by seven more blows) three times in succession. To make matters worse, the damn whistle was an eerie and terrifying sound that made your teeth rattle and your bones turn cold. Worse than anything, this horrid whistle would blow whenever there was a fire, including the wee hours of the morning - and, trust me, it was NOT a sound that you want to be awakened by at 4AM!!

Actually the lionKing defender siren made in china is now the largest, but doesn't hold the record for loudest siren because it makes the same decible rating as the chyrlser siren. Since the chrysler siren came first, it still holds the record.

I

You remind me of My Jonathan in NY very nice

what kind/brand was the electronic siren because the only one that i though of was an ATI but i dont think so anymore

I love when you say well the herrings are angery

Where do you get those big electronic sirens? It would be AWESOME to have one!! :D

6:23 I have that same Gerber Multi Tool! That's awesome!

Unlike alot of sirens sold at electronic stores that one seems to actually immitate the emergency vehicles..It's sounds like ones heard in England now days.

The 3t22 air raid siren has solenoids. Meaning it can make 3 sounds and do Hi-Lo. Also EOWS sirens are built to do hi lo. Also it is the Chrysler Air Raid siren. Thats its name. Just that.

The big horn is from a EOWS 612 siren

What is the model number on that large speaker from the air raid siren?

IS it just me or do they recrated a kind of "Fun with Flags" ? :p

That big horn is from an Eows 612 siren.

I know u remembered it, but it's the Chrysler Air Raid siren. It has a maximum output of 138 decibels and can be heard over 2 miles away.

1:26 I laughed way to hard lmao

the siren your talking about at the end is a Chrystler Air Raid Siren, it was used by the DOD and Civil Defense Departments

Hey, how can you power that AC motor with a DC source? What determines if a brush motor is universal? I know there are plenty of DC brush motors, but wouldn't they just vibrate if you ran them on AC?

the big horn is for an EOWS 612

the big speaker is from a eows 612 or 812

the first one, im only part way in and dont know if you'r showing more than one siren.. but it looks and sounds like the kind that go off in houses with security systems.. they were at least installed usually in the basements of homes with security systems in the 90s.. large to huge homes, anyway.

The thunderbolt 1000 is unique because of the blower thing that it has. It has 1 port instead of the same amount as the chopper and instead of being quiet at low notes, it's actually loud as hell even at low frequencies. The ACA Hurricane is the same sort of system but the thunderbolt is better due to adjustable pitches, multiple blowers, easier to work on and actually with it's 5M blower, it is louder than the hurricane as a single tone. (Dual tone is about equal or slightly less.)

Now I know from where Sheldon's ( Big Bang Theory ) Flag series has origionated from

@crazywarriorman It is A federal 2T22B

He pulled a speaker from a EOWS 612 Tornado Siren.

When the 5 y old at Walmart doesn’t get the Elmo plush 11:15

If you have English subtitles on on the air raid siren part it says: ah ah ah

I'm so into sirens I have a cup and a paper towel roll on my I pod to make it look like a tornado siren

That big horn is from a EOWS 612

Thank you all for this educational entertainment! :)

Yeah, mechanical sirens are WAY cooler than electronic ones! In fact, one of mine is that same or very similar model as yours!

Chrysler Victory Siren available in both Gas and Natural Gas.

The mechanical siren is a rather simple concept. The frequency of the sound it puts out is equal to the number of rotations per second times the number of holes around the side. A siren with 11 holes that rotates at 40rps will produce a sound of 440Hz, which is standard concert A.

Amazing uwowowo

I've heard of another gasoline siren! There's a fuel version of the ACA Allertor! That's weird too! Can you try to find one of those and demo it, too?

Its their way of saying: I'm free.

Dang! Ware did you get a horn from a EOWS siren?

Nice its a EOWS Siren speaker. I can tell because of the dual speakers on the horn. It would be cool to make up a EOWS 612. 6= The horns 12= Total speakers in siren. It will be 6 times as loud. lol

8:19 Holy shit! I have one of those in my basement that i got when i was a little kid.

the big speaker is a EOWS speaker horn.

chrysler hemi there is one out in oakland and it is gas power and it was accually a devision of chrysler marine and they are still a few active examples of the victory air raid siren

@insAneTunA Most of their videos don't end up on youtube, go to their website to see follow up videos and etc.

Are those speaker cones/drivers from an EOWS-612?

Where did u get that big siren at the 5:35 mark?

can I have your small siren plz I want to hook it up to my amp see how louds it is

11:16 the captions say ah from the sirens noise

Your pocket size power supply ❤

He forgot to mention that the Chrysler Bell is the loudest air raid siren made.

Used for the EOWS

the big speaker is a SiraTone spaker for E.O.W.S

The mechanical siren had a 6 port chopper I believe

where did you get the speaker at the 5:36 mark

Does he needs a gun for a video presentation? By the way, that power source is big. Nice vid, I always wanted to know how mechanical sirens works. Thanks.

that is an epic power supply... i want one

i did take one apart, but my camera cut short

nice

Is the big horn from an EOWS siren?

is that a horn from a eows612

Chrystler made the Victory Siren....they did use a Hemi Motor.

Um, actually, a lot of the sound *does* also come out of the front of the siren. Air gets sucked in that way, but at the same time, sound is emanating out of there! In fact, with some models, I've noticed that it seems like more sound comes from the suction horn than from the blow ports.

You ain't kidding.

@RubertaLang third sequel: To get back to that, does Photon explains for example why that the reflective metal coating of a cd is blasted off under High Voltage discharges? NO, he has fun showing it, but things like, "hey it expands quickly, as it heats way faster thant the plastic support, so it delaminates explosively as the constraints beween the plastic and conductive layer grow superior to the bond of the two layers" No way, so hell, it's my guess, for all I know, and Photon

8:24 sounds like a cut black ops sequel XD

11:46 nice siren trumpet

@RubertaLang second sequel: As to why most of the video are starring Chris Boden, maybe that's because he is one of the few people of that thing that is doing it fulltime? Quite frankly, Paul Kidwell gets to be the explaining one, or on the cnc equipment, Rick, etc, but they are not there full time, Chris is. Do you watch the vlog that is the behind the scenes of this? In it, Moose, and other people of the staff explain what they do...

1:28 MRRRRRRRR

i found +superspeedersrob in his other job

They're called Big Bertha and Big Red.

That siren you are talking about was powered by a propane fueled Hemi V8

@amberlynn6914 I've seen the geek groups siren. It is a PN20.

your neighbors probably love you