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43Sensibly equivalent¶ to:A2543 CV2514 ER43
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The Type 43, is an audio output pentode that is designed for use in receivers with a series heater chain. It is electrically identical to the IO based 25A6. The valve is rated for use in low power single ended output stages.The classic envelope is 44 mm in diameter and, excluding the UX6 base pins, is 106 mm tall.References: Data-sheet, 1040 & 1043. Type 43 was first introduced in 1932. See also 1932 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 |  h | a | g2 | g1 | k | h |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | Pout | D | 
| 25 | 0.3 | 160 | 120 | -18 | 36 | 12 | 42,000 | 2.4 | 2.2W | 10% |
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Updated February 27, 2013.
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