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185BTSensibly equivalent¶ to:CV1980
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The 185BT is television line output valve.The cathode resistor should be 160 Ω and the positive anode surge is a maximum of 8,000 Volts. The anode maximum dissipation is 25 W and the screen maximum dissipation is 5.5 Watts.![](../pics/aaa1310a.jpg)
The high voltage design can be seen in the ceramic insulators.The classic envelope is 54 mm in diameter, and excluding the IO base pins is 122 mm tall.References: 1039 Type 185BT was first introduced in 1949. See also 1949 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | tc | ![](../static/key.gif) nc | h | nc | g2 | g1 | nc | h | k | a |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | ![](../static/key.gif)
| 18.0 | 0.45 | 180 | 180 | - |
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Updated January 04, 2022.
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