Object Details
- Description
- Telegraph relays amplify an electrical signal in a telegraph line. Telegraph messages travel as a series of electrical pulses through a wire from a transmitter to a receiver. The pulses fade in strength as they travel through the wire, limiting the distance a message can be sent. Relays remedy that problem by detecting a weak signal and automatically re-transmitting that signal down the line using a local power source.
- Location
- Currently not on view
- Data Source
- National Museum of American History
- Maker
- Western Union Corporation
- maker
- Western Electric
- Credit Line
- from Western Union Corporation
- Physical Description
- metal (overall material)
- Measurements
- overall: 5 3/4 in x 2 3/4 in x 2 3/4 in; 14.605 cm x 6.985 cm x 6.985 cm
- Object Name
- relay
- polar relay
- telegraph relay
