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1 X 5963 TUBE. USED.
BRAND: NCR. 1960s SYLVANIA PRODUCTION.
17MM LONG PLATES, HALO GETTER, COPPER RODS, GOLD PIN.
IT HAS LITTLE USE.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
93/97% EMISSION (EM) 108/109% TRANSCONDUCTANCE (GM) 0.2/0.2mA/V GAS
CH166U1