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1 X EF86 TUBE. NEW OLD STOCK IN ORIGINAL BOX.
BRAND: MULLARD. 1960s PRODUCTION.
MESH PLATE, HALO GETTER.
TESTED IN FUNKE W20 TUBE TESTER:
MINIMUM GOOD EMISSION = 60% = 1.8mA
2.6mA EMISSION (EM)
CH165U1