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CV492Sensibly equivalent¶ to:
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The CV492 is the ECC83 high impedance amplifier triode. The design has a high amplification factor of 100. The envelope carries the CV designation and the American Type designation of 12AX7 indicating direct equivalence.The KB/DA identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the DA identifies the maker as Mullard Radio Valve Co., Blackburn.
The other side of the glass shows that this is a standard production Mullard ECC83.The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall.References: Data-sheet, 3002 & 1040. Type CV492 was first introduced in 1947. See also 1947 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |  a(2) | g1(2) | k(2) | h | h | a(1) | g1(1) | k(1) | hct |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vg | mAa | ra | gm | 
| 6.3 | 0.3 | 250 | -2 | 1.2 | 62.5K | 1.6 |
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Updated October 24, 2024.
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