Telegraph Resonator

Description (Brief):

Telegraph sounders convert electrical pulses into audible sounds and are used to receive Morse code messages. The message travels as a series of electrical pulses through a wire. Short pulses make a dot, slightly longer pulses make a dash. The sequence of dots and dashes represent letters and numbers. The pulses energize the sounder’s electromagnets which move a lever-arm. The arm makes a loud “click” when it strikes a crossbar and the operator translates the pattern of sounds into the original language. A resonator like this was used to amplify the sound, making it easier for an operator to hear his or her own sounder when working in a room filled with these devices.

Location: Currently not on view

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

Exhibition:

Exhibition Location:

Credit Line: from Western Union Corporation

Data Source: National Museum of American History

Id Number: EM.332780Accession Number: 294351Collector/Donor Number: 07-02Catalog Number: 332780

Object Name: telegraph soundertelegraph receivertelegraph resonator

Physical Description: metal (overall material)wood (overall material)Measurements: overall: 14 1/2 in x 7 7/8 in x 5 3/4 in; 36.83 cm x 20.0025 cm x 14.605 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a7-20a6-704b-e053-15f76fa0b4fa

Record Id: nmah_891697

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