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1 X JAN 6414 TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: GENERAL ELECTRIC. 1960s PRODUCTION.
GREY PLATES, SOLID GETTER.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
71/78% EMISSION (EM) 78/89% TRANSCONDUCTANCE (GM) 0.1/0.1mA/V GAS