Bell and Howell oscillograph type 5-137 P9-12
Bell and Howell oscillograph type 5-137 P9-12, by Bell and Howell Ltd., Electronic Instruments Division, Basingstoke, England, no movements installed.
- Measurements:
-
overall: 24 kg
- Object Number:
- 1997-624 Pt1
- type:
- oscillograph
- Image ©
- The Board of Trustees of the Science Museum