NEC6SN7GTBBrand on TubeNECCountryJapanBottle HeightHalfTip ShapeRound TipBottle ShapeSkinny BottleGlass ColorClear GlassMicaDoublePlate LookRibbed / ScalePlate ColorMatte GrayPin ColorSilver PinsBaseBlackRound TipLets discuss this tubeMore 6SN7GTB type tubesAmperex6SN7GTBCEI6SN7GTBG.E.B.6SN7GTBGE6SN7GTBHit-RayITT6SN7GTBHitachi6SN7GTBHytron6SN7GTBMiniwatt6SN7GTBMullard6SN7GTBNEC6SN7GTBPhilipsRogers6SN7GTBWestinghouse6SN7GTBMore tubes branded NECNec12AD7Nec12AD7NEC12AU7NEC12BY7ANEC12RLL3NEC5R-HH5NEC5R4GYNEC6CA7NEC6SN7GTB