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Locomotion
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Locomotion
National Railway Museum
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Category
Radio Communication
4
Electronic Components
1
Terrestrial Magnetism
1
Object type
variometer
6
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Variometer reflecting head in fitted case
Tapped variometer (concentric-cylinder type)
B.T.H. variometer crystal set
Dubilier "Mansbridge" variometer
Tuner by R.I. & Varley Ltd
Marconiphone series/parallel aerial variometer
