Early Platinum Electrical Resistance Thermometer, 1871-1890
- Made:
- 1871-1890
Early form of platinum thermometer, one of nine, in glass tube, plastic with bitumen stopper and four wire terminals, unsigned, 1871-1890.
Details
- Category:
- Heat
- Object Number:
- 1930-363 Pt2
- Materials:
- glass, mica, copper (metal), plastic (possibly vulcanised rubber), platinum (metal) and bitumen
- Measurements:
-
overall: x 290 mm x , 8 mm, .01kg
- credit:
- Callendar, Mrs.