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Most of my tubes were U.S. made. For example. One matched pair of JLRV-12AT7WB tubes by GE (Canada).
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Triode #1 - Plate Current = 9.22mA \ Rp = 11101 \ Gm = 5884 \ Mu = 65.3 \ Corners = PASS. Triode #2 - Plate Current = 9.65mA \ Rp = 10441 \ Gm = 5855 \ Mu = 61.1 \ Corners = PASS. Triode #1 - Plate Current = 10.24mA \ Rp = 10420 \ Gm = 6141 \ Mu = 64.0 \ Corners = PASS.
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One Matched pair of military JLRV-12AT7WA tubes, by GE (Canada). Most of my tubes were U.S. made.
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For sale is a RARE Matched Pair GE JG-6201/12at7/ECC81 Black Plates Triple Mica tubes D-getter. Made in USA. All tubes are also tested for noise and microphonics. Tests very strong at NEW level and tightly matched.
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(1) G.E. 12AX7/ECC83 vacuum tube. 11mm gray ribbed plates with halo getter. The pins are clean and straight. The silver flashing is excellent with no burn. No shorts, leakage or oscillation. Life test shows good/pass.
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We cannot be responsible for what tubes test in another tester.
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One matched pair of 6201/12AT7 tubes by GE (USA), new in boxes. Most of my tubes were U.S. made.
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