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CV807Sensibly equivalent¶ to:3A4 CV2390 DL93 E1485
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The CV807 miniature output pentode is specified for both audio and transmitter use. The CV807 is the same as the commercial 3A4 and the envelope has both Type designations. For a small dry battery valve 1.2 Watts output in the HF range would be quite an achievement. Clandestine radio springs to mind.The thin glass tube envelope is 17 mm in diameter and, excluding the B7G base pins, is 44 mm tall.References: Data-sheet & 1040. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | f- | a | g2 | g1 | fct | a | f+ |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | Pout | D |
| 1.4 | 0.2 | 150 | 90 | -8.4 | 13.3 | 2.2 | 100,000 | 1.9 | 0.7 | 6% |
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Updated March 30, 2021.
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