Vintage Sylvania 12AU7A PLATINUM PLUS+ GRADE Tubes Matched Pair Test > 100% NOS

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All tubes come with a full<br>30<br>day, unconditional, no questions asked, money back satisfaction guarantee!<br>Test scores normally average between<br>80% and 90%<br>of NOS values.<br>These strong and balanced tubes measure between<br>100%<br>and<br>110%<br>of minimum NOS values.<br>Individual test scores will be written on the new boxes that you receive with your tubes.<br>These tubes were carefully screened by the manufacturers (Baldwin, Conn, Hammond, Wurlitzer etc.) and specially selected for their low noise and microphonic characteristics.<br>You are purchasing a "Platinum Plus Grade" matched pair of tubes. This means that the plate matching is virtually perfect on a calibrated Hickok TV-7 or Hickok 799 within<br>1%<br>.<br>Please see our other listings for "Silver, Gold and Platinum" matched tubes. Silver Grade tubes are matched within<br>15%,<br>Gold Grade tubes within<br>10%<br>and Platinum Grade<br>5<br>%<br>.<br>The Gold and Platinum Grade tubes are recommended for more critical applications such as your preamp and phono stage.<br>The price listed is for one pair of tubes. To purchase more than one pair, when available, simply change the number in the quantity box which is located just above the advertised price.<br>Worldwide USPS First Class International delivery is available at $17.50 for the first pair and only $3.00 for each additional pair.<br>Please email with any questions and/or concerns.<br>Thank you for viewing my listings.<br>***<br>***<br>