The A110 from Philips was designed for HF and LF use in radio receivers. The very low heating requirement points to a dull emitter type, probably thoriated tungsten.Etched into the envelope are the words imported from Holland.![](../pics/aaj0233a.jpg)
The etched lettering and within the horizontal anode.The balloon envelope is 42 mm in diameter, and excluding the B4 base pins is 74 mm tall.Reference: 3002. Type A110 was first introduced in 1925. See also 1925 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | ![](../static/key.gif) a | g1 | f | f |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | ![](../static/key.gif)
| 1.2 | 0.06 | 20-100 |
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Updated October 28, 2014.
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