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1. 2 X 12AX7A UNITED ELECTRON TUBE. 1979 KOREAN PROD. MATCHED PAIR. CO ENA

   2 X 12AX7A TUBE. 1979 KOREAN PRODUCTION. GRAY PLATES, HALO GETTER, MATCHED PAIR. TESTED IN AMPLITREX AT1000 TUBE TESTER.

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2. Rare Pair Tungsram Amperex 12AX7A NOS NIB Short Grey Plates Serious Tubes D529

   Manufacturer: Tungsram for Amperex(made in England?). But this the way of the world now. We are always looking to buy more tubes. Large collections, small collections, it doesn't matter. Looking forward to hearing from you, Dan.

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3. RCA Grails 7025 12AX7A Matched Pair Audiophile Tubes Tests NOS

   Pure audiophile bliss: Effortless clarity with a “golden glow”—mids that wrap around vocals like velvet, highs that extend without grain, and lows with grip and texture that reveal layers in complex mixes.

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4. SYLVANIA 12AX7 Long Gray Plate Tubes PLATINUM MATCHED on AT1000 ECC83

   Triple Platinum Matched on Amplitrex AT1000. Amplitrex AT1000 Test Results 90%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).

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5. ECC83 12AX7 Grey Plate O Getter Used Amperex Bugle Boy Holland Valve Tubes

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6. ATES (RCA Italy) ECC83 12AX7 Long Plate Valve Tube NOS Boxed (V62)

   ECC83 12AX7 Long Plate Valve Tube. ATES - RCA Italy. NOS, Supplied in Original Box.

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7. 12AX7A/ECC83 Tungsram 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. TUNG-SOL TUNGSOL ECC803S ECC83 12AX7 12AX7A Gold Pins Amplitrex Matched Pair

   Tubes are matched for gm to 10% or better on am Ampltrex Tester. The Tung-Sol ECC803S 12AX7A has high gain, ultra low microphonics and superb linearity. The sound of this tube is full and musical.

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