The EF14 is an RF pentode.![](../pics/abo0193a.jpg)
The Telefunken logo and the Type designation.The wide metal tube envelope is 36 mm in diameter, and excluding the footless base pins is 36 mm tall.References: Data-sheet, 1040 & 1043. Type EF14 was first introduced in 1939. See also 1939 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ![](../static/key.gif) g1 | k | m | g2 | h | h | g3 | a |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | ![](../static/pdflogo.gif)
| 6.3 | 0.3 | 250 | 200 | -4.5 | 12.0 | 1.7 | 0.2M | 7.0 |
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Updated February 23, 2015.
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