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Horn amplificator for your IPhone 4/4s
based on the ducts found on good old gramophones!
Amplifies the sound pressure from 70dB to 85dB ;)
I have printed both parts on my ultimaker using netfabb
Passive 1870's sound amplificator by DigitalTargeter is licensed under the Creative Commons - Attribution - Share Alike license.
So what's this mean?
We're sure DigitalTargeter would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!