The CV1166 is a directly heated triode that was used under their own designations by several of the UK services. It was called:- NR42, AR5, VR22, POVT140 as well as the prototype the commercial LP2.The bright anode and above the first top mica is a bridge carrying the two helical filament tensioning springs.A detail view of the twin filaments held in the hooks of the springs.Looking down on the dome.The balloon envelope is 41 mm in diameter and, excluding the B4 base pins, is 82 mm tall.Reference: Data-sheet. |