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CV785Sensibly equivalent¶ to:See also:
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The CV785 is the UK Government code for the commercial 1T4 and is a miniature screened pentode for dry battery operation. It was designed for radio reception and is a variable μ RF device and would be employed as an IF amplifier in most cases.The reverse with other markings. The filament can be seen as a single vertical thread with a spring at the top.The thin glass tube envelope is 17 mm in diameter and, excluding the B7G base pins, is 47 mm tall.References: Data-sheet & 1040. Type CV785 was first introduced in 1947. See also 1947 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | f- | a | g2 | ic | f- | g1 | f+ |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm |
| 1.4 | 0.05 | 90 | 67.5 | 0 | 3.5 | 1.5 | 0.5M | 0.9 |
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Updated April 08, 2021.
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