The C10 is a barretter, that is a series resistance to stabilise current flow. The barretter characteristic comes from the use of iron wire. The attached data sheet has a good explanation of the barretter and its function.The C9 and C10 are quite similar with the main difference being the base connections. However, the filament connections are the same.![](../pics/abn0083a.jpg)
The coiled wire and the central glass support.The wide glass tube envelope is 38 mm in diameter, and excluding the Ct8 base pins is 110 mm tall.Reference: Data-sheet & Data. Type C10 was first introduced in 1939. See also 1939 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ![](../static/key.gif) nc | nc | nc | nc | f | nc | nc | f |
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Absolute Maximum Operating Conditions¶
Stabiliser | Vh | Ah | ![](../static/pdflogo.gif)
| 120 | 0.2 |
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Updated January 21, 2023.
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