National12AX7WABrand on TubeNationalCountryUSATip ShapePinched TipGlass ColorClear GlassMicaDoubleGetterSquare GetterGetter SupportOnePlate LookRibbed / ScalePlate Size14mmPlate ColorMatte GrayPin ColorSilver PinsPinched TipLets discuss this tubeMore 12AX7WA type tubesAmperexBy Sylvania12AX7WAGE12AX7WAITT LorenzBy Telefunken12AX7WANational12AX7WAPhilips ECG12AX7WAMore tubes branded NationalNational12AD7National12AX7AECC83National12AX7AECC83National12AX7WANational6L6GCNationalBy EiE83CCNationalBy RCA6973NationalBy RFT6CA7EL34NationalEL34NationalBy Matsushita12AU7ECC82NationalBy Matsushita12AX7NationalBy Matsushita12AX7