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12SH7Sensibly equivalent¶ to:See also:
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The 6SH7 type was designed for wideband RF and IF amplification and has a relatively high gm value to ensure a good gain-bandwidth product. The 12SH7 differs only in heater requirement and was made for vehicle based equipment.
The RCA logo.The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 51 mm tall.Reference: 1043. Type 12SH7 was first introduced in 1945. See also 1945 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |  m | h | k | g1 | k | g2 | h | a |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | 
| 12.6 | 0.15 | 250 | 150 | -1.5 | 10.8 | 4.1 | 0.9M | 4.9 |
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Updated January 10, 2017.
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