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HR210Sensibly equivalent¶ to:
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The Tungsram HR210 is a battery triode and is equivalent to the Mullard PM1HL etc. These very popular valves were used as detectors.Our other HR210 is encapsulated within a classic envelope and coated with a gold coloured external Zinc metallic paint.
The base and split pins.The balloon envelope is 42 mm in diameter, and excluding the B4 base pins is 82 mm tall.References: Data-sheet & 1043. Type HR210 was first introduced in 1933. See also 1933 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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PDF scanned from an original document held by the museum |
Updated February 09, 2013.
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