NOS 1962 Matsu/Mullard 7189 Preamp Audio Power Tube Premium 6BQ5 EL84 Upgrade

Old stock matsu japan 7189 preamp audio power tube (6bq5 el84). Direct japan vintage import from small radio collections.

Full mutual gm test and complete master refurbish process. W/ original box and pristine silk screen. Give several sessions or 100+ hours in your specific preamp to settle in. Authentic vintage audio curation and master refurbish by cali acoustics.

10+ years of audiophile community top marks, and over 35 years audio expertise. 6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cca. 12ax7 12au7 12at7 12at7wa 12ad7 / ecc83 ecc82 ecc81 6201. 6bq5 el84 7189 7189a 6267 ef86 6aq8 ecc85 6ca7 el34.

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