Potentiometer, white double
1920
- Title
- Potentiometer, white double
- Collection
- Caltech Images Collection
- Series
- Scientific Instrument Photographs
- Identifier
- ST-PH-20
- Dates
- 1920
- Extents
- 1 photographs (negative)
- Abstract
- Serial no. 209395. The instrument is described in Leeds and Northrup Bulletin no. 726 (1927). Purchased by CIT in 1950. Mfg: Leeds and Northrup Co., Philadelphia, PA.