The VT-152 (6K6GT commercial) is an audio output pentode designed for the final audio stage of television and radio receivers. Strapped as a triode it is also rated for service as a frame (vertical) output valve.
Electrically it is identical to type 41 it was also released in 1950 with a Loctal base under the type number of 7B5E.
The Ken-Rad name on the base cap and the commercial 6K6GT on the glass.
The last test results.
The top mica showing the spacing of the wire grids. The control Grid is wound on copper rods for best heat transfer.
The wide glass tube envelope is 29 mm in diameter, and excluding the IO base pins is 66 mm tall.
