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9D7Sensibly equivalent¶ to:CV5409
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The 9D7 is a variable μ pentode. Brimar do not give a designated frequency range in their literature. As variable μ pentodes are used in AGC amplification systems, this suggests a role in IF amplification at up to 10.7 MHz.The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 47 mm tall.References: Data-sheet, 3002 & 1040. Type 9D7 was first introduced in 1958. See also 1958 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |  k | g1 | k | h | h | s | a | g2 | g3 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | mAa | gm | 
| 6.3 | 0.3 | 250 | 100 | 10 | 8.4 |
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Updated January 31, 2013.
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