Vacuum tube
- Made:
- 1890-1920
Vacuum tube
Details
- Category:
- Therapeutics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A78923
- Materials:
- tube, glass, terminals, brass and pins, platinum
- Measurements:
-
length 560 mm
stem: diameter 30 mm
bulb: diameter 35 mm
- type:
- vacuum tubes
- credit:
- Barker, G.A.
