Object Details
- Description
- Alexander Graham Bell demonstrated several experimental telephones at the Philadelphia Centennial Exposition in 1876. This unit features a single electro-magnet and could be used both as transmitter and receiver. Bell approached the problem of transmitting speech differently from other telephone inventors like Elisha Gray and Thomas Edison. They were mostly experienced telegraphers trying to make a better telegraph. Bell's study of hearing and speech more strongly influenced his work.
- See more items in
- Work and Industry: Electricity
- Artifact Walls exhibit
- Communications
- Computers & Business Machines
- American Enterprise
- Exhibition
- American Enterprise
- Exhibition Location
- National Museum of American History
- ID Number
- EM.252599
- accession number
- 49064
- catalog number
- 252599
- patent number
- 174465
- maker
- Bell, Alexander G.
- Related Publication
- Sewer, Andy; Allison, David; Liebhold, Peter; Davis, Nancy; Franz, Kathleen G.. American Enterprise: A History of Business in America
- Physical Description
- wood (base material)
- brass (posts material)
- tin (mouthpiece material)
- brass (brackets material)
- Measurements
- overall: 6 1/2 in x 5 in x 11 in; 16.51 cm x 12.7 cm x 27.94 cm
- Data Source
- National Museum of American History
- Object Name
- experimental telephone
- telephone
- Record ID
- nmah_689864
3D Model