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HL2Sensibly equivalent¶ to:See also:
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The HL2 is a general purpose triode but the Mazda advert for this metalised valve suggests that it is well suited for use as a leaky grid detector of first audio voltage amplifier.
The reference number.The balloon envelope is 42 mm in diameter, and excluding the B4 base pins is 85 mm tall.References: Data-sheet, 1040 & 1043. Type HL2 was first introduced in 1931. See also 1931 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 | -2 | 2.0 | 24,000 | 1.35 |
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PDF scanned from an original document held by the museum |
Updated June 11, 2022.
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