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CV753Sensibly equivalent¶ to:1A3 1D13 DA90
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The CV753 is a miniature diode on a B7G base and features a 1.4 Volt indirectly heated cathode. The prototype was the 1A3 and both Type designations appear on the glass.
The diode: the insulated heater is a single vertical strand within the cathode cylinder. The anode has side fins to anchor the anode and to provide heat dissipation. The working area is small.The KB/D identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the D identifies the maker as Mullard Radio Valve Co., Mitcham.The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 47 mm tall.Reference: Data-sheet. Type CV753 was first introduced in 1943. See also 1943 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |  h | a | k | nc | nc | a | h |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | mAa | 
| 1.4 | 0.15 | 117 | 0.5 |
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Updated October 25, 2024.
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