Grey harmonic telegraph receiver

Grey harmonic telegraph receiver

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Object Name
Harmonic Telegraph Receiver
Other Terms
Harmonic Telegraph Receiver; Tune Reed; Telegraphy
Gray, Elisha
resonator: 2 1/4 in x 3 5/8 in x 7 in; 5.715 cm x 9.2075 cm x 17.78 cm
coil: 1 1/8 in x 1 1/2 in; 2.8575 cm x 3.81 cm
overall: 6 1/8 in x 3 5/8 in x 7 in; 15.5575 cm x 9.2075 cm x 17.78 cm
ID Number
catalog number
accession number
Credit Line
from Oberlin College, Dept. of Physics, thru David L. Anderson
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Work and Industry: Electricity
Data Source
National Museum of American History
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