Telegraph Resonator
Telegraph Resonator
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- 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. This unit is mounted on a folding stand for the operator's convenience.
- Location
- Currently not on view
- Object Name
- resonator
- telegraph resonator
- Other Terms
- resonator; Telegraphy
- Physical Description
- cast iron (overall material)
- aluminum (overall material)
- wood (overall material)
- Measurements
- overall: 13 in x 4 in x 10 in; 33.02 cm x 10.16 cm x 25.4 cm
- ID Number
- EM.222135
- catalog number
- 222135
- accession number
- 41949
- Credit Line
- from Foote Pierson & Co.
- See more items in
- Work and Industry: Electricity
- Communications
- Telegraph Sounders
- Data Source
- National Museum of American History
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