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2 X ECC82 TUBE. NEW OLD STOCK.
BRAND: MARCONI. 1960s PRODUCTION.
GREY PLATES, HALO GETTER, COPPER RODS, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
104/118% EMISSION (EM) 109/109% TRANSCONDUCTANCE (GM) 0.4/0.2mA GAS
104/125% EMISSION (EM) 100/109% TRANSCONDUCTANCE (GM) 0.4/0.6mA GAS