BM7-500 Cat.No. 40050
Evershed & Vignoles Ltd; London
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Evershed & Vignoles Ltd; London
- Year
- 1970 ??
- Category
- Service- or Lab Equipment
- Radiomuseum.org ID
- 370030
- Number of Transistors
- 3
- Wave bands
- - without
- Power type and voltage
- AA: 6 x 1.5 Volt
- Loudspeaker
- - - No sound reproduction output.
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: BM7-500 Cat.No. 40050 - Evershed & Vignoles Ltd;
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 95 x 154 x 58 mm / 3.7 x 6.1 x 2.3 inch
- Notes
-
Used to measure very high resistance such as insulation by measuring the small current that flows when a fairly high voltage is applied.
The instrument has three ranges:1) Megohms with 500V applied
2) Ohms with 300 mV applied
3) Internal battery test
- Net weight (2.2 lb = 1 kg)
- 0.450 kg / 0 lb 15.9 oz (0.991 lb)
- Author
- Model page created by Hendrik van Hooijdonk. See "Data change" for further contributors.
- Other Models
-
Here you find 12 models, 11 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Evershed & Vignoles Ltd; London
Collections
The model BM7-500 is part of the collections of the following members.