De Forest triode type 427, 1927
- Made:
- 1927
This image is released under a CC BY-NC-SA 4.0
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Science Museum Group
© The Board of Trustees of the Science Museum
De Forest triode type 427, 1927
Details
- Category:
- Electronic Components
- Object Number:
- 1976-232
- type:
- triode
- credit:
- Ferrowatt Electrical Museum
