CV491K64PhilipsBranded MiniwattPinched TipCode On Tubek64 ⊿8LCountryHollandGetterD-GetterGlass ColorClear GlassMicaDoubleNotesD-Getter with flat cross barPermanentidhw2ppcuyPin ColorSilver PinsPlate ColorMatte GrayPlate LookRibbed / ScalePlate Size17mmTip ShapePinched TipYear1958More CV491 type tubesCV491MullardCV491Branded HivacCV491Branded SiemensMore tubes manufactured by PhilipsEL34, SYOPhilipsBranded Tekade12AX7, ECC83PhilipsBranded Hammond12AX7APhilipsBranded AmiRoweEL34, XF4PhilipsBranded Valvo12AX7PhilipsBranded RogersECC83, MC0PhilipsBranded Valvo7693PhilipsBranded AmperexGZ34PhilipsBranded MullardEL34PhilipsBranded PopeEL34, 6CA7, SYOPhilipsBranded MullardMore tubes branded MiniwattECC83, MC1ValvoBranded PhilipsMiniwattECC83Branded MiniwattDarioE90FBranded MiniwattECC40Branded PhilipsMiniwatt6SN7GT, R93MazdaBranded PhilipsMiniwattECC83 12AX7Branded Miniwatt6189Branded MiniwattDario12AX7SBranded RTCMiniwattDario4654, 4654KBranded MiniwattDarioPhilipsEL34Branded MiniwattDario