Amperex Green Label 6922 E88CC Matched Pair Low Noise Gold Pin

This listing is for One Pair of Tightly Matched Made In USA Amperex 6922/E88CC Green Label vacuum tubes with gold pins.

Most of the label is erased and these are made in 1969.
They sound very similar to Amperex white label 6922 PQ tubes having much of the white label sound quality.

Both are made in 1969 with the same date code 7L9*9L (December 1964).
Etched number on the tubes is also identical: 003.

6922 tubes will have a longer lifespan than 6DJ8 tube.
In some cases 6922 tubes will last 5,000 to 10,000 hours vs 3,000 to 4,000 hours for 6DJ8 tubes.

Test very strong like new!
Well matched!
Low noise (phono grade)!
Should last for many years!

Paypal add 3.5%.

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Shorts and Gas Test: Passed
Listening Test: Very good noise characteristics with no microphonics.
Gm Test:
Tube #1 Triode Section 1: 13500
Tube #1 Triode Section 2: 13600
Tube #2 Triode Section 1: 12600
Tube #2 Triode Section 2: 13100

Where minimum good is 7000 and Spec for new tube is 12500

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Excellent performance guaranteed, so buy with confidence (full refund if not satisfied).

First Class Mail shipping within US with tracking is $4.
USPS International First Class Mail is $12 ($10 to Canada).

Tubes are tested by Hickok 539C vacuum tube tester. This tester was precision calibrated by Roger Kennedy to improve measurement accuracy. 83 and 5Y3 tubes were replaced by Solid State rectifiers to minimize calibration drift in the tester.

All tubes are installed into an actual audio circuit to screen them for internal tube noise/micorphonics. This is especially important with the 6DJ8/6922/7308 tubes.