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CV449Sensibly equivalent¶ to:0G3 85A2 CV4048 QS1209 QS83/3 VX375See also:
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The CV449 is a small, special quality voltage stabiliser. The striking voltage is 115 Volts and the maintaining voltage is 85 Volts. For a tube current variation of 1 mA to 10 mA the voltage regulation is 4 Volts.This valve would have been used to directly stabilise the voltage for an oscillator or be employed as a voltage reference for a stabilised supply. In the latter case the tube would be operated at constant current.![](../pics/acs0001a.jpg)
The GEC brand label.See Mullard 85A2 for the commercial version.The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 46 mm long.References: Data-sheet. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | ![](../static/key.gif) a | k | ic | k | a | ic | k |
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Absolute Maximum Operating Conditions¶
Stabiliser | Va | ![](../static/pdflogo.gif)
| 85 |
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Updated April 10, 2021.
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