4 used Sovtek 5881/6L6 WXT power tubes
These are the tubes Fender has been using in many of their recent production guitar amplifiers.
These tubes were tested on a Maxi-matcher digital tube tester with an minimum acceptable current rating of 12 ma and transconductance of 2.2 mMhos.
These tubes are not tested for microphonics.
The numbers on the tubes shown in the photo are the test results.
Each tube is in a Sovtek tube box (as shown in photo).
Note: The distributor marking on these tubes can vary, however they are all Sovtek tubes manufactured in Russia.
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