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N30Sensibly equivalent¶ to:See also:
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The N30 is from the second series of M-OV Catkins and has an opaque enamelled top envelope.The N30 was a version of the MPT4 with a 13 V 0.3 A heater, intended for use in AC/DC sets.The visible envelope is in fact a precision shaped copper anode that is sealed to the lower glass envelope.The large wide base hides a rubber sealing ring that helped to reduce microphonic effects.The thin metal tube envelope is 18 mm in diameter and, excluding the B7 base pins, is 103 mm tall.References: Data-sheet. Type N30 was first introduced in 1934. See also 1934 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |  nc | g1 | g2 | h | h | k | a |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | gm | 
| 13.0 | 0.3 | 250 | 250 | -15 | 32 | 8 | 3.9 |
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Updated January 03, 2022.
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