4 X 6F6GT FIBRE PRODUCTION TUBE. BRANDED RSD. NEW OLD STOCK IN ORIGINAL BOX.

BLACK PLATES.

BLACK PLATES, RECTANGULAR GETTER, COPPER RODS.

TESTED IN PIPE TEST TUBE TESTER:

86% EMISSION (EM) 32.65mA

85% EMISSION (EM) 32.28mA

87% EMISSION (EM) 32.95mA

87% EMISSION (EM) 33.03mA

N.11. CB402