- Country
- United States of America (USA)
- Manufacturer / Brand
- Leeds & Northrup; Philadelphia
- Year
- 1926
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 260516
- from Radiomuseum.org
- Model: 4258 - Leeds & Northrup; Philadelphia
- Dimensions (WHD)
- 280 x 100 x 240 mm / 11 x 3.9 x 9.4 inch
- Notes
-
The Kohlrausch Slide Wire, no. 4258, cost $100.00 in 1926. It has "end coils that provide a very long slide wire in compact form. An accurate index permits reading to one part in 10,000 of the resistance of the slide wire, or, with the end coils, to one part in 100,000 of the resistance of the slide wire and end coils. The wire is mounted on a bakelite drum mounted on a polished hard rubber plate. A bakelite hood carrying the contact slider protects the wire from dust, etc."
The instrument was used for making up Wheatstone bridges and potentiometers.
- Price in first year of sale
- 100.00 $
- Author
- Model page created by Etienne Flemal. See "Data change" for further contributors.
- Other Models
-
Here you find 15 models, 14 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Leeds & Northrup; Philadelphia