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12SF5Sensibly equivalent¶ to:CV919
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The 12SF5 is a high gain triode designed for RC coupled voltage amplifier use in audio equipment, especially vehicle battery powered sets. The 6SF5 differs only in heater rating.![](../pics/aaw0001a.jpg)
The reverse of the metal tube envelope carries the RCA logo.The thin metal tube envelope is 25 mm in diameter, and excluding the IO base pins is 50 mm tall.References: Data-sheet & 1043. Type 12SF5 was first introduced in 1939. See also 1939 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ![](../static/key.gif) m | k | g1 | nc | a | nc | h | h |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vg | mAa | ra | gm | μ | ![](../static/pdflogo.gif)
| 12.6 | 0.15 | 200 | -2 | 0.9 | 66,000 | 1.15 | 100 |
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Updated January 05, 2022.
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