Dumb-bell vacuum tube with spiral tube inside
- Made:
- Great Britain and Unattributed place
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Science Museum Group
© The Board of Trustees of the Science Museum
Dumb-bell vacuum tube with spiral tube inside, supplied by Medical Supply Association, British, 1904
Details
- Category:
- Therapeutics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A602661
- Materials:
- glass, electrodes, metal and contacts, brass
- type:
- electrodes
- credit:
- Bruce, A.N.
