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This area of the site is for discussing things related to Outdoor Warning Sirens.
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By Duderocks5539
#185848
I have got in contact with the designer of these sirens ,his name is John Glenn Powell a retired SONGS employee as an audio engineer ,And he told me that he had an extra siren at his house but didn't have the horns and he said that he'll give it to me. So I told him that I'll come and pick it up. And he didn't charge me anything ,the only thing the siren needs is two motors. The rotor motor needs a 1 HP pool pump type motor. and the blower needs a 5 HP TEFC motor that is signal phase 240 volts. And yes these sirens are pneumatic but that rectangular box that was next to the bottom of the pole was actually a control box. The siren has no diesel compressor ,It is a 5 HP centrifugal blower that is at the top of the siren below the rotor. Also the rotor has 4 ports and the stator has 8 ports. I 'am currently buying both motors for this siren ,and will be here soon. One more thing ,the siren produces 120 db at 100 ft ,and it’s an octave interval siren so it has a frequency of 240 and 480 Hz. I 'am not lying about this ,this is really the siren. For proof here are some pictures.


Some pictures are sideways sorry :roll:
Attachments
IMG_2635.JPG
rotor and stator (motor goes on that flange)
IMG_2635.JPG (1.73 MiB) Viewed 2455 times
IMG_2636.JPG
intake for air from blower.
IMG_2636.JPG (1.54 MiB) Viewed 2455 times
IMG_2637.JPG
4 port rotor (Yellow thing)
IMG_2637.JPG (1.6 MiB) Viewed 2455 times
IMG_2638.JPG
Intake for blower.
IMG_2638.JPG (2.42 MiB) Viewed 2455 times
IMG_2640.JPG
inside the centrifugal blower.
IMG_2640.JPG (1.93 MiB) Viewed 2455 times
IMG_2641.JPG
belts for pulley system.
IMG_2641.JPG (2.49 MiB) Viewed 2455 times
IMG_2642.JPG
5 HP motor pulley wheel.
IMG_2642.JPG (1.31 MiB) Viewed 2455 times
IMG_2643.JPG
Blower pulley cover.
IMG_2643.JPG (2.12 MiB) Viewed 2455 times
IMG_2644.JPG
You can see the blower under the horns.
IMG_2644.JPG (1.04 MiB) Viewed 2455 times
IMG_2649.JPG
The horns compared to 3 people.
IMG_2649.JPG (1.24 MiB) Viewed 2455 times
Last edited by Duderocks5539 on Mon May 07, 2018 11:54 pm, edited 6 times in total.
#185853
WOAH! That's the MOST PRECIOUS GEM EVER in the Siren World! But, may I know what else did John Powell said about the horns? Is the horns 'accidentally' got scrapped? I guess you could just get 8 Thunderbolt horns for replacement horns. XD But anyways, a great find! So is the siren can just be attached to a Thunderbolt / Hurricane blower? Or it can be just ran without the blower? P/S Can you upload a video on it?
#185854
FahmiRBLX wrote:
Sun Nov 26, 2017 1:33 am
WOAH! That's the MOST PRECIOUS GEM EVER in the Siren World! But, may I know what else did John Powell said about the horns? Is the horns 'accidentally' got scrapped? I guess you could just get 8 Thunderbolt horns for replacement horns. XD But anyways, a great find! So is the siren can just be attached to a Thunderbolt / Hurricane blower? Or it can be just ran without the blower? P/S Can you upload a video on it?
He made this one in case San Onofre needed an extra one ,He never got a chance to make horns for this one ,but the blower is a centrifugal blower that has 2 belts and is powered by a 5 HP motor. Me and a friend of mine that is a siren enthusiast are going to make horns that are like the original ones that were made of fiberglass. I still have to work on it ,like getting 2 motors for it and making a mount for it on a cart.
Last edited by Duderocks5539 on Thu Nov 30, 2017 10:44 pm, edited 1 time in total.
#185856
Err, Duderocks, may I know what John Powell siad about its actual name? And did he knew that his siren is called Toshiba siren?
#185857
FahmiRBLX wrote:
Sun Nov 26, 2017 2:16 am
Err, Duderocks, may I know what John Powell siad about its actual name? And did he knew that his siren is called Toshiba siren?
No he didn't know that's what people were calling them ,but he said he called them the model 120.
#185858
This has to easily be the coolest thread I've seen on here in years. Congrats dude!
#185861
Wow, I thought these had all been scrapped long ago. Is the blower supposed to spin at 3450 RPM or more? I heard that centrifugal blowers aren't very effective for supercharging sirens because they don't force the air through the ports.
#185865
There’s a very high tolerance between the impeller and housing so it will work well. I will be making new fiberglass horns for it and wiring it up.
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