Telefunken ECC802 S Matched and Balanced Tube Pair - Holy Grail 12AU7 Tubes

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General:
This listing is for a matched and balanced set of high-performance dual triode Telefunken ECC802 tubes with original boxes.

One appears to be NOS (New Old Stock), and the other tests as new but has some lettering wear.

Amplitrex AT1000 Test Results ((Our modern and professional tube tester)

Test Result Format, Shown as % of NOS spec:
Triode 1 Plate Current / Triode 1 Gm
Triode 2 Plate Current / Triode 2 Gm

Tube 1:
99/95
102/100

Tube 2:
97/100
100/100

All four sections are plate current and Gm matched within 5%.

SkyFi Cosmetic Notes:
One tube appears to be NOS, the other has lettering wear but tests as new.

SkyFi Technical Notes:
This pair of tubes was tested on our Amplitrex AT-1000 tube tester.

Both tubes test very close to 100% of NOS bogey spec for both plate current and Gm. They have tight triode balance and are well matched to one another.

They also passed our microphonic test with flying colors. Excellent testing tubes.

The date code on one of the tubes is no longer legible, but the second tube date codes reads U1000603Z.

These are not matched date codes but have the same internal structure.

Ownership:
Single Owner

Cosmetic Condition:
9/10 = Excellent. Perfect physical condition, gently used. See our detailed rating description here.

Working Condition:
Working perfectly and tested in our lab.

Included:
Unit and box