12AU7ABranded CbsPinched TipGlass ColorClear GlassMicaDouble MicaPermanentid1onydbv4rlPermanentid1onydbv4rlPin ColorSilver PinsPlate ColorMatte GrayPlate Size14mmTip ShapePinched TipTip ShapePinched TipMore 12AU7A type tubes12AU7AHitachiBranded Marconi Radiotron12AU7ABranded Toshiba12AU7ABranded General Electric12AU7A, ECC82MatsushitaBranded Lindal12AU7ABranded Heintz & Kaufman12AU7ARCABranded Superior12AU7ABranded Arcturus12AU7ABranded Raytheon12AU7AMullardBranded Rogers12AU7A, ECC82Branded RCAMore tubes branded Cbs6SN7GTBranded CbsHytron7730Branded CbsJHY-5751, 5751Branded Cbs5814WABranded CbsHytron12BZ7Branded Cbs7025Branded Cbs6CG7Branded Cbs12AX7Branded Cbs7318Branded Cbs5881Branded Cbs