Sensibly equivalent¶ to:
The CV3711 is an audio output pentode with a high mutual conductance, suggesting that full output can be obtained with a low input signal.
In class AB1 push pull a pair of valves can deliver 9 Watts at 4.5% distortion. If connected as triodes the pair can deliver 6.3 Watts at 1.6% distortion.
The commercial equivalent of this UK Government specification valve is N78.
The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins, is 63 mm tall.
References: Datasheet & 1040. Type CV3711 was first introduced in 1953.
Absolute Maximum Operating Conditions¶
Updated October 14, 2013. shape:thin.glass.tube construction:all.glass type:pentode age:1950.1960 base:b7g heater:6.3v pins:7 pin:1.g1 pin:2.k.g3 pin:3.h pin:4.h pin:5.a pin:6.ic pin:7.g2