The CV453 is a miniature pentagrid converter also given the American Type designation of 6BE6. The prototype was the 6BE6.
The KB/D identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the D identifies the maker as Philips, Eindhoven, Holland.
Sight of the grids through the gaps in the anode.
Made in Holland.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 47 mm tall.
Reference: Data-sheet. Type CV453 was first introduced in 1951. See also1951 adverts.
