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2 X ECC82 TUBE. NEW OLD STOCK.
BRAND: MARCONI. 1960s PRODUCTION.
GREY PLATES, HALO GETTER, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
98/100% EMISSION (EM) 96/99% TRANSCONDUCTANCE (GM) 0.6/0.4mA GAS
87/87% EMISSION (EM) 89/86% TRANSCONDUCTANCE (GM) 0.6/0.4mA GAS