Ferranti Ltd HVI proving unit.
Details
- Category:
- Electricity Supply
- Object Number:
- Y1996.10.427
- Materials:
- wood (unidentified), metal (unknown) and plastic (unidentified)
- Measurements:
-
overall: 136 mm x 210 mm x 93 mm, 1.942
- type:
- voltmeter
- credit:
- Gift of Ferranti International Signal plc