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1. 1 x 12AX7 Raytheon Tube*Long Black Plates-O*Super Strong*NOS-NIB*#R10

   1 x 12ax7 Raytheon Tube. Tested on Enhanced Triplet E3444 Laboratory Tester. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. Long Black Plates.

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2. 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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3. (2) Raytheon 12AX7A Japan Preamp Tubes Pair (TESTED W/ TV-7D/U)

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4. RAYTHEON CK5751 (LOWER GAIN 12AX7) BLACK PLATE WINDMILL GETTER GAIN (76.9, 77.2)

   TESTED ON A MAXI PREAMP II TUBE TESTER FOR GAIN(Mu), TRANSCONDUCTANCE(Gm) AND NOISE(dB). While performing an audio tap test on the Maxi Preamp through a guitar amp Triode A tested good when tapped, Triode B tested good when tapped.

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5. (1) Raytheon CK 5751 12AX7A Triple Mica Tube Short Gray Plates Horseshoe Getter

   1 Pair of GE 6201 JG-12AT7 Vacuum Tubes Short Gray Plates Support Rods Thick O Getters. Tube tests at 42/44 with 32 being the minimum score for a good tube (with 65% life remaining).

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6. Raytheon Long Black Plate 12AX7 Vacuum Tube Tested 81/75% Gm

   100% represents what you would expect from a NOS tube on our Amplitrex and 65% is considered too low to use.

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7. 12AX7A/ECC83 Raytheon Tall Black Plate MaxiPreamp2/TV7 tested (1)tube lot

   I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.

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8. 12AX7/ECC83 Raytheon Tall Black Plate MaxiPreamp2/TV7 tested (1)tube lot

   I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.

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