12AX7ECC83MullardBranded El MencoPinched TipCountryGreat BritainGetterO-Getter PlateGlass ColorClear GlassMicaDouble MicaPermanentidyc7sk69c2Pin ColorSilver PinsPlate ColorMatte GrayPlate LookRibbed / ScalePlate Size14mmTip ShapePinched TipMore 12AX7 type tubes12AX7Branded RCA12AX7, I65Branded ElectrohomeECC83, 12AX7, MC0SiemensBranded Tungsram12AX7, ECC83PhilipsBranded Hammond12AX7Branded Heintz & KaufmanGammatron12AX7Branded Ge12AX7SylvaniaBranded Rad-Tel12AX7Branded General ElectricECC83, 12AX7, I63Branded Mullard12AX7Branded ShieldMore ECC83 type tubesECC83, 12AX7ATelefunkenBranded LafayetteECC83, 12AX7, MC0SiemensBranded Tungsram12AX7, ECC83PhilipsBranded Hammond12AX7A, ECC83, 7025EiBranded Philips EcgECC83BrimarBranded ArkayECC83Branded United ElectronECC83Branded MiniwattDarioECC83, MCAValvoBranded TekadeECC83, MC1ValvoBranded PhilipsMiniwattECC83Branded TelefunkenMore tubes manufactured by MullardEL34, XF2MullardBranded SylvaniaCV491MullardEL37MullardBranded AmperexEL34, XF2MullardBranded Philips6CA7, EL34, XF2MullardBranded AmperexECC33, FX1MullardBranded ValvoECC82, I61MullardBranded ValvoEL34, XF2MullardBranded PhilipsEL34, 6CA7, XF2MullardBranded Siemens12AU7, K61MullardBranded TungsramMore tubes branded El Menco12AU7A, ECC82Branded El Menco