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1 X ECC85 TUBE. NEW OLD STOCK.
BRAND: SIEMENS. 1960s PRODUCTION.
GREY PLATES, HALO GETTER, COPPER RODS.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
76/94% EMISSION (EM) 63/90% TRANSCONDUCTANCE (GM) 0.4/1.0mA GAS