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18042Sensibly equivalent¶ to:6086 TS53
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The 18042 is a special quality pentode designed for use in telephone systems. The life quoted is 10,000 hours.![](../pics/aaa1064a.jpg)
The envelope is clearly marked with the SQ designation.The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins is 58 mm tall.References: Data-sheet & 3002. Type 18042 was first introduced in 1952. See also 1952 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ![](../static/key.gif) g2 | g1 | k | h | h | a | ic | ic | g3,s |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | ![](../static/pdflogo.gif)
| 18 | 0.1 | 210 | 120 | -1 | 10.0 | 2.1 | 0.5M | 9.0 |
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Updated February 08, 2013.
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