![](https://coimages.sciencemuseumgroup.org.uk/43/60/large_thumbnail_1984_0663.jpg)
Indicating unit type 1657A with ion chamber by Avo
- maker:
- AVO Limited
![Radiation indicating unit (type 1657A, Serial No.](https://coimages.sciencemuseumgroup.org.uk/356/835/medium_smg00186273.jpg)
Radiation indicating unit (type 1657A, Serial No.. 224) with ion chamber, by AVO Limited, London, England, 1945-1959
Details
- Category:
- Nuclear Physics
- Object Number:
- 1982-632
- Materials:
- zinc (metal), aluminium alloy, steel (metal), glass and plastic (unidentified)
- Measurements:
-
overall: 140 mm x 450 mm x 85 mm, 3.14 kg
- type:
- ionization chamber
- credit:
- Baker, M.A.W.