Matched quad of excellent testing 1950's, USA made RCA 12AU7A, long black plate, "D" getter tubes.  All have been tested on a calibrated TV-7A/U tube tester (no shorts).

Results:

1) 118-114/56

2) 116-116/56

3) 116-112/56

4) 113-115/56

***** I DO SHIP INTERNATIONAL *****

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