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2 X 6463 TUBE. NEW OLD STOCK.
BRAND: GENERAL ELECTRIC. 1960s PRODUCTION.
GREY PLATES, HALO GETTER, COPPER RODS, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
106/103% EMISSION (EM) 115/97% TRANSCONDUCTANCE (GM) 0.6/0.4mA GAS
92/92% EMISSION (EM) 100/100% TRANSCONDUCTANCE (GM) 0.4/0.6mA GAS