The TE994 is an indirectly heated triode employing the UK original AC heater voltage of 4.0 Volts. The design purpose was for use as a detector or audio voltage amplifier.![](../pics/abo0085a.jpg)
The Makers name and Type designation are on the dome of the envelope.The balloon envelope is 44 mm in diameter, and excluding the B5 base pins is 99 mm tall.References: 1043 & 3002. Type TE994 was first introduced in 1934. See also 1934 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | ![](../static/key.gif) a | g1 | h | h | k |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vg | mAa | ra | gm | ![](../static/key.gif)
| 4.0 | 1.2 | 200 | -1.6 | 1.0 | 25,000 | 4.0 |
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Updated November 27, 2014.
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