2 NEC EF86 6267 tubes tested NOS
pair of vintage NEC 6267/ef86 tubesthese are new old stock tubes that came in a manila envelope from kodak to a repair shop. i personally removed them from their original packing. no manufactures code on these. the both have 4X on them which may be a date code. i would guess these are made in japan since all the nec stuff i have seen is japanese. they have 1 top seem gray plate - halo getters tested on my hickok 539c mutual conductance tester. minimum for this type is 1150 gm. tested at 2200 & 2300gm. with nos being around 2000 gm buyer pays actual shipping
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