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CV1700Sensibly equivalent¶ to:POVT150A SP41
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The CV1700 (Commercially the SP41) is an RF pentode and a step towards TV and Radar. The prototype was the Mazda SP41 and the base is MO. The old GPO code is POVT150A.The KB/F identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the F identifies the maker as STC, Oldway (Additional to Paignton factory 'F').
The STC name and the commercial SP41 indicating equivalence.The classic envelope is 32 mm in diameter, and excluding the MO base pins is 79 mm tall.Reference: Data-sheet. Type CV1700 was first introduced in 1938. See also 1938 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | tc |  h | k | a | g2 | g3 | m | nc | h | g1 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | 
| 4.0 | 0.95 | 250 | 250 | -1.5 | 10.9 | 2.7 | 0.7M | 8.5 |
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Updated July 12, 2025.
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