12AX7 RAYTHEON 17MM GREY PLATE VINTAGE AUDIO TUBE NOS NIB RARE (1954)

Triode #1 - Plate Current = 1.15mA \ Rp = 59665 \ Gm = 1557 \ Mu = 92.9 \ Corners = PASS. Triode #2 - Plate Current = 1.26mA \ Rp = 58284 \ Gm = 1588 \ Mu = 92.6 \ Corners = PASS. Triode #1 - Plate Current = 1.65mA \ Rp = 47035 \ Gm = 1915 \ Mu = 94.1 \ Corners = PASS.

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