# compressed air gramophone

> gramophone that uses a pneumatic amplifier to amplify sound

**Wikidata**: [Q5157017](https://www.wikidata.org/wiki/Q5157017)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Compressed_air_gramophone)  
**Source**: https://4ort.xyz/entity/compressed-air-gramophone


## References

1. [Source](http://www.douglas-self.com/MUSEUM/COMMS/auxetophone/auxetoph.htm#aux)