Availability: 1 In Stock
RCA, Branded Shield - 12AU7A 12AU7 ECC82
Sawtooth, Ribbed Black Plate, "D" Getter, nice double copper support posts.
Date Code: 7-58
This tube tested better than new with very good balance between triodes @ 2320/2370
Tested on Calibrated Hickok 6000 Tube Tester
 Shorts |
Filament
|
Quality
(Good/Bad) |
|
Continuity |
Gas
Leakage |
Mutual
Conductance (New 2200/2200) |
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