TT22Branded G.E.C.BaseSilver MetalCountryUnited KingdomGlass ColorClear GlassMicaTriple MicaPermanentid2d3i603dPin ColorSilver PinsPlate ColorBlackPlate LookSmoothMore tubes branded G.E.C.KT66Branded G.E.C.TT21M-O Valve Co. LtdBranded G.E.C.B339, ECC83, I61Branded G.E.C.CV2901Branded G.E.C.ECC83Branded G.E.C.U52Branded G.E.C.ECC82, B329Branded G.E.C.CV1075Branded G.E.C.KT66Branded G.E.C.B65M-O Valve Co. LtdBranded G.E.C.
