KT88M.O.Branded GenalexBaseSilver MetalCountryEnglandGlass ColorClear GlassManufacturer ExtendedM.O. Valve Co. Lmt.MicaTriple MicaPermanentid90097iypPin ColorSilver PinsPlate ColorBlackPlate LookSmoothMore KT88 type tubesKT88M.O.Branded Iec MullardKT88Branded Gold AeroKT88CetronBranded National ElectronicsKT88M.O.Branded GenalexKT88M-O Valve Co. LtdBranded BrimarKT88M-O Valve Co. LtdBranded GenalexGold MonarchKT88GenalexBranded EdicronKT88M-OBranded TronixKT88Branded National ElectronicKT88M.O.Branded G.E.C.More tubes manufactured by M.O.KT88M.O.Branded Iec MullardCV1988M.O.KT88M.O.Branded GenalexKT88M.O.Branded G.E.C.More tubes branded GenalexKT66Branded GenalexKT77Branded GenalexKT88M.O.Branded GenalexB759Branded GenalexGold LionB749Branded GenalexGold LionKT88M-O Valve Co. LtdBranded GenalexGold MonarchZ729Branded GenalexKT66M-O Valve Co. LtdBranded GenalexGold MonarchKT66Branded GenalexU77, GZ34, 5AR4Branded Genalex
