(1) Hammond/GE 12AX7/ECC83 Vacuum Tube MADE IN USA! TESTS STRONG! What you see in the pictures is what you are getting! GE -- 102/105 No Shorts/Grid Leakage.
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Reference tube is tested first then the tube listed for sale.
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+ these are taller tubes w/ gain in-between 12au7/12at7, and similar to 12av7 ( 6414 0528 12at7 12av7 5965 7062). this ensures a thorough break-in, opens up sonically, all w/ no muted qualities leftover.
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12AT7 GE Used Vacuum Tubes. This sale is for one (1) used GE 12AT7 tube. TESTED Good on Jackson 648 S. They have tested good on a Jackson 648 S Tube Tester. These are all used vacuum tubes. No Box 9 Pin Gray Plate.
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5 Vintage 12AX7 Tubes, All test between 56 and 86 where 50 is good on my tv-7 Boxed RCA TESTS 72/80 Raytheon tests 80/86 Remaining three test 56/80
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These tubes were tested on a Hickok 600 tube tester. Tubes test as follows from L to R in picture.
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I use my Etracer curve tracer in tandem with research and experience. One of the only other modern testing devices at this level would be the Amplitrex AT1000, but even that unit cannot develop full spectrum graphical analysis the way the Etracer can.
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See photos comes as is no returns
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