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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 80% and 90% of NOS values. This particular tube tested 83%.
Individual test scores will be written on the boxes that you receive with your tubes.
You are purchasing a "Platinum Grade" tube. This means that the plates are very tightly matched on a calibrated Hickok TV-7 or 799 within 5%.
They were carefully screened by the manufacturers (Hammond, Baldwin, Conn etc.) and specially selected for their low noise and microphonic characteristics.
Please see our other listings for "Silver, Gold and Platinum Plus" tubes. Silver Grade tubes are matched within 15%, Gold Grade are matched within 10% and Platinum Plus 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 tube, 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 $12.95 for the first two tubes and only $3.00 for each additional two tubes.
Please email with any questions and/or concerns.
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