The EAF801 is a replacement for the EAF81 and the vari-μ pentode is designed for RF and IF amplification in superhet receivers.Zaerix specialised in supplying valves made in eastern Europe and this one was made in Hungary.![](../pics/abo0152a.jpg)
The electrostatic screen obscures all internal detail.The thin glass tube envelope is 21 mm in diameter, and excluding the B9A base pins is 60 mm tall.Reference: Data-sheet. Type EAF801 was first introduced in 1963. See also 1963 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ![](../static/key.gif) g2 | g1 | k | h | h | a | s | a(d) | g3 |
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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 | 250 | -20 | 9.0 | 2.7 | 0.9M | 4.5 |
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Updated July 19, 2020.
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