An electric telegraph key
Object No. B712-7
'Resonator and sounder. The speed with which morse code messages can be read by sound is greater than by sight. The sounder consists of an electromagnet relay which by means of a suitably shared anvil makes a sharp noise when activated by electric current. to enable operators to define these sounds is more clearly the sounder is placed in a resonator to amplify the coded message as it is being received." from label accompanying accession number B712.
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Summary
Object Statement
Key, part of electric telegraph apparatus, wood / metal / bakelite, maker unknown, used by the Posts and Telegraphs Postmaster-General's Department, Sydney, New South Wales, Australia, 1920-1937
Physical Description
A telegraph sounder and key conisting of a rectangular wooden base with a brass mechanism and hammer. The hammer has a black circular handle or knob made from Bakelite.
DIMENSIONS
Height
82 mm
Width
75 mm
Depth
145 mm
PRODUCTION
Notes
This telegraph sounder and key was used by the Posts and Telergraphs Postmaster General's Department between 1920-1937. It was acquired by the Museum in 1937.
HISTORY
Notes
The equipment and photographs were received from the Deputy Director, Posts and Telegraphs.
SOURCE
Acquisition Date
11 November 1937
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