indicator
- Made:
- circa 1950 in United Kingdom
Three demonstration glass indicators excitable by tesla coil. c.1950.
Details
- Category:
- Electronic Components
- Object Number:
- 2003-211
- Materials:
- glass, metal, composites
- Measurements:
-
: 20 x 10 mm
- type:
- semi-conductor
- credit:
- GEC Hirst Research Centre
