7025 12AX7A ECC83. O Getter Tube. Short Grey PLATES. TUBE's TEST RESULT's TV-7/u Tested. I tested these on a High Quality Professonal Hickok TV-7/U Tester TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES!
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NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states "Individual tubes, like any manufactured product, may have characteristics that range above or below the values given.
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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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These are new production by New Sensor. We were shocked at how good these re-issues are. Try them in your classic guitar amplifier as well, for that thick 60s sound with fast attack and decay. Does it approach the original Mullard in sound?.
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Variant: Russian 2 production. Russian 2 version with stable, musical gain.
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You are buying an Amperex Bugle Boy Red Tip 12AX7 ECC83 D Foil Grey Plate Tube Holland NOS. Great Silkscreen. Measure in my TV-7D/U 47/48.
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This one tests very strong. Minimum good is 32.
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