The CV515 (commercially the 6Y6G) is a beam tetrode audio power valve. The design use was as a single ended audio output stage in receivers or audio equipment. The six watt output would be too great for most receiver applications.
The commercial Type designation as well as the USA Government procurement code VT-168A.
The heater passes through the cathode six times. The control grid has copper support rods.
The classic envelope is 44 mm in diameter and, excluding the IO base pins, is 100 mm tall.
