Conductivity Bridge
Doran Instrument Company Ltd.; Gloucester.
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Doran Instrument Company Ltd.; Gloucester.
- Year
- 1962 ?
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 338354
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Transistors
- Semiconductors present.
- Semiconductors
- Wave bands
- - without
- Power type and voltage
- Dry Batteries / 9 Volt
- Loudspeaker
- - - No sound reproduction output.
- Material
- Metal case
- from Radiomuseum.org
- Model: Conductivity Bridge - Doran Instrument Company Ltd.;
- Shape
- Portable set > 8 inch (also usable without mains)
- Notes
-
This instrument is made to enable measurements of resistance and conductance in laboratory or in field. The bridge network is complete with a 1 kHz (nominal) oscillator, a null amplifier, a bi-directional null balance indicator and a 9 V dry battery.
The total range of the instrument is 0 to 10 MΩ for resistance and 0 to 1 Ω-1 for conductance, covered in seven steps each.
The accuracy of the measurement is ± 2%.All particular information in the attached original article.
- Mentioned in
- -- Original-techn. papers. (Electronic Engineering, volume 34 year 1962, June)
- Author
- Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.
- Other Models
-
Here you find 2 models, 1 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Doran Instrument Company Ltd.; Gloucester.