The CV1102 is a double triode. The prototype was the M-OV BL63. The old service code VR102.
The KB/Z identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the Z identifies the maker as MO Valve Company, Hammersmith.
The IO base cap and pins.
The pinch and underside of the screen are all that can be seen.
Thanks to Mark Mallison for sending the images.
The classic envelope is 45 mm in diameter and, excluding the IO base pins, is 116 mm tall.
