This version of the CV2736 triode has an anode that is cylindrical inside but formed of a sheet folded into many flutes to increase the surface area. CV2736 has a plain cylinder anode.
The helical filament is at the centre of the anode cavity and its connections are taken to the base pins.
The grid is firmly held in place by the thick rod that protrudes through the envelope at right angles to the valve axis.
The KB/JE identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the JE identifies the maker as Elliott-Litton, Borehamwood.
The grid connection on the side of the envelope.
The form of the anode is better illustrated in this image. The top cap rod connects to the anode with a four point fixing plate.
The wires of the grid cage are held in a collar at the base. The helical filament is seen within.
A closer view.
The wide glass tube envelope is 32 mm in diameter, and excluding the UX4 base pins is 96 mm tall.
References: Data-sheet. Type CV2736 was first introduced in 1945. See also1945 adverts.
