![](https://coimages.sciencemuseumgroup.org.uk/41/177/large_thumbnail_1975_0359__0001_.jpg)
Three of the first microphones, 1878.
- Made:
- 1878
![Five microphones consisting of wood-charcoal blocks in contact](https://coimages.sciencemuseumgroup.org.uk/471/769/medium_smg00293095.jpg)
Five microphones consisting of wood-charcoal blocks in contact
Details
- Category:
- Telecommunications
- Object Number:
- 1922-223
- type:
- microphones
- credit:
- Executors of the late Anna C. Hughes
Five microphones consisting of wood-charcoal blocks in contact