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NR52Sensibly equivalent¶ to:See also:
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This NR52 is metallised with a typical Mullard gold paint. The NR52 is a British Navy receiving valve, the commercial equivalent is a Mullard 354V triode, a design that dates from 1929 with improvements in 1930 and again in 1935. The μ for this valve was 40.The NR52 was used after 1941 when CV designations were introduced, the type then was classified as CV1173.The NR52 designation printed on the top of the glass. The AP number stands for Admiralty Pattern 1607 - the specification.The classic envelope is 42 mm in diameter and, excluding the B5 base pins, is 91 mm tall.References: Data-sheet & 1043. Type NR52 was first introduced in 1929. See also 1929 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | a | g1 | h | h | k |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | ra | gm |
| 4.0 | 0.65 | 250 | 11,500 | 3.5 |
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Updated May 14, 2021.
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