type 1-F wheatstone combination relay


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.

Date Made: ca 1918

Maker: Western Union Corporation

Location: Currently not on view

See more items in: Work and Industry: Electricity, Communications


Exhibition Location:

Credit Line: from Western Union Corporation

Data Source: National Museum of American History

Id Number: EM.333237Model Number: 1-FAccession Number: 294351Catalog Number: 333237

Object Name: combination Wheatstone relayrelaycombination relaytelegraph relay

Measurements: overall: 5 1/4 in x 5 1/4 in x 5 in; 13.335 cm x 13.335 cm x 12.7 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a7-31a0-704b-e053-15f76fa0b4fa

Record Id: nmah_892025

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