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2 X EF86 TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: MINIWATT. 1950s PHILIPS PRODUCTION.
MESH PLATE, HALO GETTER, MATCHED PAIR.
TESTED IN AMPLITREX AT1000 TUBE TESTER:
96% EMISSION (EM) 100% TRANSCONDUCTANCE (GM) 0.0mA GAS
106% EMISSION (EM) 122% TRANSCONDUCTANCE (GM) 1.0mA GAS