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H210Sensibly equivalent¶ to:B228See also:
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This exhibit is labelled as a barium tube, clearly indicating an oxide cathode. The envelope also gives the heater voltage as 2.0 V and the anode voltage as 200 V. This valve is given as originally manufactured in 1929. The electrodes are pointed at an angle to the horizontal and the filament is a single 'V'.The balloon envelope is 44 mm in diameter and, excluding the B4 base pins, is 86 mm tall.Reference: 1043. Type H210 was first introduced in 1929. See also 1929 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 | 150 | -1.5 | 1.0 | 50,000 | 0.7 |
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Updated April 26, 2013.
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