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12SA7Sensibly equivalent¶ to:CV537See also:
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The 12SA7 is a pentagrid converter for use as a mixer oscillator in superhet receivers. The design is quoted by RCA as optimised to increase stability.![](../pics/abq0020a.jpg)
Westinghouse made this valve in Canada.The thin metal tube envelope is 25 mm in diameter, and excluding the IO base pins is 50 mm tall.References: Data-sheet, 1040, 3002 & 1043. Type 12SA7 was first introduced in 1939. See also 1939 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ![](../static/key.gif) g5 | h | a | g2,g4 | g1 | k | h | g3 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | ra | ![](../static/pdflogo.gif)
| 12.6 | 0.15 | 300 | 100 | -0 | 14.0 | 1.0M |
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Updated April 28, 2014.
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