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CV5077Sensibly equivalent¶ to:
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The CV5077 is a PL81 in UK service form, physically it is identical to the PL81. It was designed for universal mains television sets, i.e. without a mains transformer and with the heaters on a series chain. Parameters given are for a pair in push pull audio service, but this was never the design use.As a line output valve in monochrome television service, the design use, the peak anode surge voltage is 7,000 Volts. The anode dissipation is 8 Watts.The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 71 mm tall.References: Data-sheet & 1040. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | tc |  ic | g1 | k | h | h | ic | ic | g2 | g3 | a |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | Pout | D | 
| 21.5 | 0.3 | 200 | 200 | -31.5 | 87 | 12.5 | 20W | 5.5% |
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Updated October 16, 2013. shape:thin.glass.tube construction:all.glass type:pentode age:1950.1960 base:b9a heater:300ma pins:9 pin:1.ic pin:2.g1 pin:3.k pin:4.h pin:5.h pin:6.ic pin:7.ic pin:8.g2 pin:9.g3 pin:tc.a
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