Collection
Collection
Learning
The group
Visit us
Expand child menu
Science Museum
National Science and Media Museum
Science and Industry Museum
National Railway Museum
Locomotion
Science and Innovation Park
Collection
Search
About
Search
About
Collection
Learning
The group
Visit us
Expand child menu
Science Museum
National Science and Media Museum
Science and Industry Museum
National Railway Museum
Locomotion
Science and Innovation Park
Search our collection
All
1
People
0
Objects
1
Documents
0
View:
Filter search
Clear all filters
Image
Has Image
1
Non-Commercial Use
1
Category
Electronic Components
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
Maker
Fleming, Sir John Ambrose; Edison & Swan United Electric Light Company
1
John Ambrose Fleming
1
Place of origin
London
1
London, Greater London, England, United Kingdom
1
Date
From year
To year
filter
One of Fleming's first thermionic diode valves, 1889
1889
