Potentiometer, low resistance standard
1933
- Title
- Potentiometer, low resistance standard
- Collection
- Caltech Images Collection
- Series
- Scientific Instrument Photographs
- Identifier
- ST-CH-12
- Dates
- 1933
- Extents
- 1 photographs (negative)
- Abstract
- Model no. 7521. Also called a resistance box. Wood, brass fittings. Ink circuit diagram inside separate top. Original inventory card on file. Mfg. Otto Wolff, Berlin.