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Image
Has Image
1
Non-Commercial Use
1
Category
Electronic Components
1
Maker
Fleming, Sir John Ambrose; Edison & Swan United Electric Light Company
1
John Ambrose Fleming
1
On Display
Science Museum
1
Making the Modern World Gallery
1
Object type
diode valves
1
electronic valves
1
thermionic emission
1
thermionic emission; diode valves; electronic valves
1
Place
London
1
London, Greater London, England, United Kingdom
1
Material
aluminium?
1
brass
1
glass
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metal
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rubber?
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steel
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textile
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wood
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Date
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One of Fleming's first thermionic diode valves, 1889
1889
