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A50PSensibly equivalent¶ to:
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The A50P is a variable μ pentode for RF and IF amplifier use. The A50P is identical to the VP4B introduced by Mullard in 1935 as by then Mullard made valves for Ever Ready.![](../pics/aaq0249a.jpg)
The reverse is plain gold coloured zinc paint.The classic envelope is 42 mm in diameter and, excluding the B7 base pins, is 107 mm tall.References: 4048, 1040 & 1043. Type A50P was first introduced in 1936. See also 1936 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | tc | ![](../static/key.gif) m | a | g3 | h | h | k | g2 | g1 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | μ | ![](../static/key.gif)
| 4.0 | 0.65 | 250 | 250 | -3 | 11.5 | 4.25 | | 2.0 | |
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Updated March 23, 2014.
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