Telephonic speaking and hearing
โ Scribed by Gfs
- Publisher
- Elsevier Science
- Year
- 1923
- Tongue
- English
- Weight
- 125 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Plu\*h--Edison's Telephone, etc. [Jour. Frank. Inst., from window spaces and window frames. Scrubbing brushes, vigorously applied, might remove them. Any simple device would serve to divert the dirty drippings which soak the bricks beneath the windows, developing characteristic white patches here b
Trouvg has invented a cylindrical microphone, which resembles a small dark-lantern, with a carbon crayon substituted for the candle. When placed in the middle of a room, it reveals all secrets. It transmits the voice admirably to a receiving telephone, even when the speaker stands 25 metres (82 ft.)
~ofeguards against Boiter