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E83FSensibly equivalent¶ to:CV9933
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The E83F Mullard pentode is a special quality version of the EF83.The valve was designed for class A audio amplification in telephone equipment where long life was very important. The audio output was 0.87 Watts and the maximum anode dissipation was 2.1 W.The thin glass tube envelope is 19 mm in diameter and, excluding the B9A base pins, is 57 mm tall.Reference: Data-sheet & Philips Pocketbook for Hams 1962. Type E83F was first introduced in 1958. See also 1958 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |  g2 | g1 | k | h | h | a | ic | ic | g3,s |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | mAa | mAs | ra | gm | 
| 6.3 | 0.3 | 210 | 120 | 10 | 2.1 | 0.5M | 9.0 |
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Updated January 31, 2013.
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