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2 X 6922 TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: AMPEREX. 1976 PRODUCTION.
GREY PLATES, HALO GETTER, GOLD PIN, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
80/86% EMISSION (EM) 90/94% TRANSCONDUCTANCE (GM) 0.2/0.4mA GAS
94/85% EMISSION (EM) 102/96% TRANSCONDUCTANCE (GM) 0.2/0.4mA GAS