CBS5881Brand on TubeCBSCountryUSABottle HeightHalfTip ShapeRound TipBottle ShapeFat BottleGlass ColorClear GlassMicaDouble MicaPlate LookSmoothPlate ColorMatte GrayPin ColorSilver PinsBaseLight BrownRound TipLets discuss this tubeMore 5881 type tubesCBS5881Electron Enterprises5881More tubes branded CBSCBS12AU7ACBS12AX7CBS12BZ7CBS5881CBS6CG7CBS7318CBS7730CBS7025CBSHytron12BZ7CBSHytron5814WACBSHytron6SN7GTCBSJHY-57515751