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Locomotion
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Locomotion
National Railway Museum
National Science and Media Museum
Science and Industry Museum
Science and Innovation Park
Science Museum
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Image
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7
Non-Commercial Use
5
Category
Electronic Components
5
Radio Communication
2
Object type
pentode
7
thermionic valve
2
valve
2
valve; pentode; thermionic valve
2
Maker
Marconiphone Company Limited
1
Valvo
1
Valvo Radioröhrenfabrik GmbH
1
Place of origin
England
1
England, United Kingdom
1
Germany
1
Date
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KEN/RAD pentode, type 6AG7
Mullard audio pentode, type EF37A
Pentode, type 9003
Marconiphone pentode valve
1933
R.C.A. pentode, type 6J7
Telefunken pentode, type RV12P2000
Valvo pentode valve
1942
