The CV4062 pentode is clearly designated as an audio power valve. In class AB1 a pair of valves in push pull will deliver 13.3 Watts. The input needs 30 Volts peak to peak and the anode load has to 7500 Ohms.
Also the data-sheet specifically mentions suitability as a series pass valve in stabilised power supplies.
In Class A, triode connected, the valve will generate 2.6W at 1.4% distortion.
When fitted with flying leads for direct soldering into a circuit the Type designation becomes CV4065.
The anode covers all the internal structure.
The base end. The cathode can be seen to have flat sides and the heater passes six times through it. Both inner grids are wound on copper supports.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 62 mm tall.
References: Data-sheet & 1040. Type CV4062 was first introduced in 1959. See also1959 adverts.