The 1B86 is a small self-quenched counter tube for gamma radiation. It is sensitive to high energy beta rays and above in energy and frequency.![](../pics/acl0366a.jpg)
The anode is the centre lead. The thin glass tube envelope is 6 mm in diameter and, excluding the base wires, is 90 mm tall.Reference: Data-sheet. Type 1B86 was first introduced in 1950. See also 1950 adverts. |
Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | ![](../static/pdflogo.gif)
| - | - | 275 |
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Updated June 10, 2021.
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