Vintage Sylvania 12AU7/12AU7A PLATINUM GRADE Tubes Matched Pair Test 100% NOS

Description

All tubes come with a full
30
day, unconditional, no questions asked, money back satisfaction guarantee!
Test scores normally average between
80%
and
90%
of NOS values.
These particular tubes measure between
100%
and
110%
of minimum NOS values !
Individual test scores will be written on the boxes that you receive with your tubes.
These tubes were carefully screened by the manufacturers (Baldwin, Conn, Hammond, Wurlitzer etc.) and specially selected for their
low
noise and microphonic characteristics.
You are purchasing a "Platinum Grade" matched pair of tubes. This means that the plates are very tightly matched on a calibrated Hickok TV-7 or Hickok 799 within
5%
.
Please see our other listings for "Silver, Gold and Platinum Plus" tubes. Silver Grade tubes are matched within
15%,
Gold Grade tubes within
10%
and Platinum Plus Grade
1%
.
The Gold and Platinum Grade tubes are recommended for more critical applications such as your preamp and phono stage.
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.
Please email with any questions and/or concerns.
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