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All tubes come with a full 30 day, unconditional, no questions asked, money back satisfaction guarantee!
Test scores will average between 85% and 90% of NOS values. This particular tube measures 92%.
Individual test scores will be written on the boxes that you receive with your tubes.
You are purchasing a "Platinum Plus Grade" tube. This means that the plate matching is virtually perfect on a calibrated Hickok TV-7 or 799 within 2%.
Please see our other listings for "Silver, Gold and Platinum" tubes. Silver Grade tubes are matched within 15%, Gold Grade tubes within 10% and Platinum within 1%.
The Gold and Platinum tubes are recommended for more critical applications such as your preamp and phono stage.
The price listed is for one tube. To purchase more than one, when available, simply change the number in the quantity box which is located just above the advertised price.
Worldwide USPS First Class International delivery available at $13.95 for the first two tubes and $3.00 for each additional two tubes.
Please email with any questions and/or concerns.
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