The ACR10 is a three inch electro-statically deflected CRT used by the British Army. It was renamed the CV1382 when the Common Valve system was introduced in 1941.
The outer diameter of the screen is 69 mm.
The paper label giving the Type designation. The Y deflection plates can be seen above the label. The X plates are just above.
The electrodes are held rigidly by mica discs and multiple support rods. Often CRTs of this vintage have the electrodes held in glass rods.
The end window envelope is 40 mm in diameter, and excluding the B12B base pins is 177 mm tall.
