Bronx Diaphone Bench Test

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Uploaded by on Aug 25, 2009

Bench test of newly repaired fire station diaphone from the Bronx. Test at 30 psi. This is a horn that I have just brought back to life by making a new piston for it.

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Science & Technology

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  • Was that the diaphone from the Aviation Hose Company of the Bronx or Edgewater Park? I am pretty sure that Edwater Park had a diaphone horn as well as a Model 2... not sure what Aviation had.

  • Since you got it working without the horn, it would be interesting to measure the sound level in dBC with and without the horn from a distance of 100 feet. This would give us a good indication of the directivity index of the horn by how much it increases the SPL on axis. It would also be interesting to do the same tests on a Thunderbolt siren.

  • @MrTomMasterVideos

    Spinning is just an effect of vibration. Diaphones are a unique type of horn which uses an air-driven piston to generate sound.

  • spinning an moving fore- and backwards?

  • AFLAC !!!!

  • Donalds sneezing!

  • I usually associate diaphones and other horns with volunteer or call companies. What would this horn been utilized for in the Bronx?

  • Great Video, always wanted to see how the Gamewell Diaphone works!

  • it uses a diaphram in side a preasure placed 1/4 mm over a hole when air is added to the inlet port this causes a resonating effect

  • That sounded soo funny. Lol. xD PWAAAAAP. xD

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