GZ345AR4Branded SonotoneRound TipBaseBlackBottle HeightHalfCountryEnglandGlass ColorClear GlassMicaDoublePermanentid1wetzi8u33Pin ColorSilverPlate ColorMatte GrayTip ShapeRound TipMore GZ34 type tubesGZ34, 5AR4Branded ZaerixGZ34, 5AR4, F32MullardBranded SylvaniaGZ34MullardBranded PhilipsGZ34PhilipsBranded MullardGZ34, 5AR4, F33Branded AmperexGZ34MullardBranded IttGZ34Branded PhilipsMiniwattGZ34, F32Branded ValvoGZ34GZ34Branded PhilipsMiniwattMore 5AR4 type tubes5AR4Branded National ElectronicsGZ34, 5AR4Branded ZaerixGZ34, 5AR4, F32MullardBranded SylvaniaGZ34, 5AR4, F33Branded Amperex5AR4, F33PhilipsBranded Rogers5AR4, F32MullardBranded TriadAmperex5AR4MullardBranded Ge5AR4, GZ34, F32MullardBranded Marconi RadiotronGZ34, 5AR4, F32MullardBranded AmperexHewlett PackardGZ34, 5AR4, F31Branded AmperexMore tubes branded Sonotone6CG7, JOZ-6CG7Branded SonotoneECC82, 12AU7SiemensBranded SonotoneEL84, 6BQ5, RX3SiemensBranded Sonotone12AX7, ECC83TelefunkenBranded SonotoneECC82, 12AU7SiemensBranded Sonotone7025, 12AX7RCABranded SonotoneEL34, 6CA7, XF2MullardBranded Sonotone