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2 X 5963 TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: RCA. 1960s PRODUCTION.
17MM GREY PLATES, HALO GETTER, PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
104/129% EMISSION (EM) 100/127% TRANSCONDUCTANCE (GM) 1.0/1.0mA/V GAS
90/120% EMISSION (EM) 100/110% TRANSCONDUCTANCE (GM) 0.4/0.6mA/V GAS
