old stock 5u4 matsuda toshiba, very early preamp power audio tube, revered dual d-getters w/ coke bottle glass

vintage production w/ the most precious tube-era metallurgy and warm sound reproduction

carefully curated screened and twice tested for conductance, plus free postage!

ships w/ large plain box and matsuda small box for visual collectors

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full conductance test +life test pass! a key longetivity indicator

our unique gm output test applies 225 vdc simulating actual operations w/ filtered dc

ships fast well packed worldwide

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authentic vintage hifidelity audiophile / preamp / mic tube curation
including limited special editions + rare true-nos sealed box + pinched waist
also high-resolution headphones + premium vocal stage and studio mics
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6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cca
12ax7 12at7 12au7 12bh7 / ecc83 ecc82 ecc81 e82cc
6bq5 6au6 6267 6ca7 6ca4 6aq5 / 6v6 6l6 6sl7 6sn7 5y3 5u4 5ar4
5814 5751 5965 6189 6201 7062 7189 / cv2492 cv4004 cv455 cv4085
el34 el84 ef86 ef94 ez81 ecc85 e180cc gz34