ECC8212AU7K61MullardBranded HeathPinched TipCode On Tubek61 R9ECountryGreat BritainGlass ColorClear GlassMicaDoublePermanentid8kussr6gPin ColorSilver PinsPlate ColorMatte GrayTip ShapePinched TipYear1959More ECC82 type tubes12AU7, ECC82SiemensBranded ATESECC82Branded BrimarECC82, F3Branded MullardECC82, I61MullardBranded ValvoECC82, 12AU7, K61Branded Mullard12AU7A, ECC82MatsushitaBranded LindalECC82, 12AU7Branded PinnacleECC82, B329, K61MullardBranded MarconiECC82Branded TungsramECC82Branded PhilipsMiniwattMore 12AU7 type tubes12AU7, ECC82SiemensBranded ATES12AU7, K61SiemensBranded Telefunken12AU7, GF1SiemensBranded ArtisanECC82, 12AU7, K61Branded Mullard12AU7, K61MullardBranded Tungsram12AU7Branded LansdaleECC82, 12AU7Branded Pinnacle12AU7Branded MazdaECC82, 12AU7FivreBranded Geloso12AU7Branded TungsramMore K61 type tubes12AU7, K61SiemensBranded TelefunkenECC82, 12AU7, K61Branded Mullard12AU7, K61MullardBranded TungsramECC82, B329, K61MullardBranded MarconiECC82, B329, K61MullardBranded MarconiECC82, K61Branded Mullard12AU7, K61Branded BrimarMore tubes manufactured by MullardEL34, XF2MullardBranded SylvaniaCV491Mullard6CA7, EL34, XF2MullardBranded AmperexEL34, XF2MullardBranded PhilipsEL37MullardBranded AmperexECC33, FX1MullardBranded ValvoEL34, XF2MullardBranded PhilipsECC82, I61MullardBranded ValvoEL34, 6CA7, XF2MullardBranded Siemens12AU7, K61MullardBranded Tungsram