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K30KSensibly equivalent¶ to:
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The Ever Ready K30K is a directly heated triode and identical to the Mullard PM2HL - Mullard being the actual manufacturer. This example of the balloon enveloped version is metalised whereas K30K has a plain glass bulb.
The identification is printed on to the dome.The balloon envelope is 41 mm in diameter and, excluding the B4 base pins, is 79 mm tall.References: Data-sheet & 1043. Type K30K was first introduced in 1937. See also 1937 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 |  a | g1 | f | f |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vg | mAa | ra | gm | 
| 2.0 | 0.1 | 135 | -1.5 | 2.2 | 21,500 | 1.4 |
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Thanks to Andy Cowley for supplying the above PDF datasheet. |
Updated January 09, 2017.
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