ECC82B329K61MullardBranded MarconiPinched TipCode On TubeK61 B6LCountryGreat BritainFactory CodeB - Mullard, BlackburnGetterSquare GetterGlass ColorClear GlassMicaDoublePermanentid06ba4ilaPin ColorSilver PinsPlate ColorMatte GrayPlate LookRibbed / ScalePlate Size17mmTip ShapePinched TipYear1956More ECC82 type tubes12AU7, ECC82SiemensBranded ATESECC82Branded BrimarECC82, F3Branded MullardECC82, I61MullardBranded ValvoECC82, 12AU7, K61Branded Mullard12AU7A, ECC82MatsushitaBranded LindalECC82, 12AU7Branded PinnacleECC82Branded TungsramECC82Branded PhilipsMiniwattECC82, 12AU7FivreBranded GelosoMore B329 type tubesB329, 12AU7Branded MarconiECC82, B329, K61MullardBranded MarconiECC82, B329Branded G.E.C.B329, ECC82, 630MullardBranded MarconiB329SiemensBranded G.E.C.More K61 type tubes12AU7, K61SiemensBranded TelefunkenECC82, 12AU7, K61Branded Mullard12AU7, K61MullardBranded TungsramECC82, B329, K61MullardBranded MarconiECC82, K61Branded MullardECC82, 12AU7, K61MullardBranded Heath12AU7, K61Branded BrimarMore tubes manufactured by MullardEL34, XF2MullardBranded SylvaniaCV491Mullard6CA7, EL34, XF2MullardBranded AmperexEL34, XF2MullardBranded PhilipsEL37MullardBranded AmperexECC33, FX1MullardBranded ValvoEL34, XF2MullardBranded PhilipsECC82, I61MullardBranded ValvoEL34, 6CA7, XF2MullardBranded Siemens12AU7, K61MullardBranded TungsramMore tubes branded Marconi6CA7, XF4Branded MarconiZ729, EF86Branded Marconi12AX7A, 7025AMarconiBranded MarconiECC83, B339, F91MullardBranded Marconi12AX7Branded MarconiECC83, B339, I61Branded MarconiECC83, 12AX7Branded MarconiB329, 12AU7Branded MarconiECC83Branded MarconiKT66Branded Marconi