Hi there, I am a siren enthusiast & I have been interested in them for a long time. In time I will make more siren videos of future experiments I plan to do with sound.
I have studied sirens for years, learning the engineering & design that has gone into them over the decades from the models of sirens from the past that are iconic & popular.
Sounds great! I think the cardboard somehow brings out the lower frequencies, which makes it sound bigger. Also were did you get that speed controller?
The cool thing is depending what you place on the intake to really does help with the sound to make it sound bigger & louder. I got this controller on eBay. Look for DC motor speed controller.
Yep when I made the full thickness tri blade to sit in the middle of the rotor I was amazed it was the right ratio to properly get the Allertor sound in 5/6. & then the intake/base I sit this siren on then brings that sound out.
I think with the right rotor design it could for sure & with the 4 centre blades in the middle of a redesigned 2T rotor that would mount onto a motor shaft like normal siren rotors, it'd work quite well.
@@Siren-experiments it's super neat, I've also been wondering what a 4/6 port siren would sound like with the intakes you made. Might make an authentic P-50/Cyclone sound?
I did try it once that port combo with the 5/6 siren set to a 6 port siren with a MS-190 4 port siren on the other side though I had no intakes back then like that. It didn't quite sound as good as 8/12. 2/3 sounded alot closer when I tried it in the past.
Yeah I decided to experiment with the sound a siren makes a while ago. Bit like placing different mufflers on a car, seems to work with sirens to hehe.
Thankyou for answering, wow! I never seen one before like that. Reminds me of the quad rotor Gents sirens that were in Britain. I just got thinking, would of been something if Sterling also made 8/10, 10/16 & 10/12 & 9/12 sirens.
Thankyou!, it was the goal as I wanted a dual tone MS-190 for something different. Not everyday either an octave siren is heard in hi lo like I showed at the start of the video. & the 4 port side has 1 middle blade across 2 of the 4 rotor blades, while the 8 port side has 4 middle blades across 4 of the 8 on that side.
I got the siren to make a 3 port undertone on the 6 port side with some triangles cut from a dishwashing sponge to reduce airflow to half of the ports on the 6 port side. With smaller sirens the air physics are much different to full size ones & I took that into account to get the required undertone. Then using a plastic cup with a hole cut in the bottom then sat it ontop of the cardboard tube from a large paper towel is how I get the 500s 10/12 sound in the video. I also placed sticky tape inside of the stator to reduce the large gap between the rotor & stator. I then fabricated then extended stator trumpets using a compass to draw out the circles required for the cutouts & strips of cardboard for each of the stator openings, Hot glue was used to hold the extended stator trumpets in place.
It is a good idea, however that bilge blower is far larger than the opening on that bottle. Then there is the voltage difference the Attwood Blower is 12 volts, While my siren can get up to over 20 volts.
That is a good question, I did notice it made the stator sound bit more louder to before as it helps get some of it out better. Yeah would be a good idea but I not have a sound level meter.
this is awesome!!! ive thought of someday messing with these cheap chinese sirens like the ms 190 and 3D printing custom parts for them to make them better!
Thankyou for subscribing to my channel, yeah nice that is a good idea. I'm glad you enjoyed what I did with this MS-190. I use these like a blank artists canvas for experimenting with different port combos. I made a 4/8 one a while back which uses a dual shaft motor. It will be featured on here eventually.
Nope it is a conical intake, & I used a cup hot glued to the bottom to make a base. A horn the sound comes out from. This intake directs sound back into the rotor as it bounces around & the sound levels build up so that it comes out of the sirens stator as an omnidirectional siren.
Hey there, thankyou for subscribing to my channel. This siren is a 6 port, what I did to make it dual tone was I placed 3 pieces of tape on the outside the 6 rotor blades closing of half to make it a 3 port. I then placed two pieces of tape over two of the stator openings on opposite sides to get the 3 port sound under the 6 port sound.
Yep, just be careful if you use it on a siren taken to full rpm, depending on the sticky tape you use, it should hold well against the centrifugal forces. I've done this with some of my other sirens & the tape if it isn't sticky enough can come of & get stuck between the rotor & stator. There is another way that is safer, depending on the ports of a siren if it is a 6 port siren try & place 3 middle central blades in the centre of the rotor from sticky tape cut into sections then fold it over onto itself to make the tape middle blades if the siren hasn't got any. While an 8 port siren place 4 middle tape blades inside the rotor using the outside area of the existing rotor blades to secure those on, then to get the octave dual tone sound place then if it is a 6 or an 8 port siren place 2, 3 or 4 pieces of tape over the outside of the stator openings. Yeah so if you're curious experiment & see what results you get.
