Magnetic key relay, 1900-1950

Made:
1900-1950 in Chelmsford
1959-227: Two brass earth arrester plates 4" diameter 1959-214: Two large morse keys, main and emergency 1959-214: Two large morse keys, main and emergency Magnetic key relay on wood base Magnetic key relay on wood base Magnetic key relay on wood base

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License this image for commercial use at Science and Society Picture Library

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1959-227: Two brass earth arrester plates 4" diameter
On loan from the Museum of the History of Science|Enquiries to Science Museum, London

1959-214: Two large morse keys, main and emergency
On loan from the Museum of the History of Science|Enquiries to Science Museum, London

1959-214: Two large morse keys, main and emergency
On loan from the Museum of the History of Science|Enquiries to Science Museum, London

Magnetic key relay on wood base
On loan from the Museum of the History of Science|Enquiries to Science Museum, London

Magnetic key relay on wood base
On loan from the Museum of the History of Science|Enquiries to Science Museum, London

Magnetic key relay on wood base
On loan from the Museum of the History of Science|Enquiries to Science Museum, London

Magnetic key relay on wood base, made by Marconi's Wireless Telegraph Company Limited, Chelmsford, Essex, England, 1900-1950

Details

Category:
Radio Communication
Object Number:
1959-215
Materials:
copper (alloy), wood (unidentified) and metal (unknown)
Measurements:
overall: 86 mm x 160 mm x 133 mm, 2.1 kg
type:
telegraph peripheral
credit:
Lent by the Museum of the History of Science