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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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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1 X 12AX7A TUBE. 1980s PRODUCTION. GRAY PLATES, HALO GETTER, COPPER RODS.
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The NOS Rare 1951 12AX7 with long gray plates and bent getter. These early 1950s tubes, often from manufacturers like RCA, GE, or Tung-Sol, feature extended gray ribbed plates around 17mm long and a distinctive bent or D-shaped getter ring, contributing to low noise, rich harmonics, and classic tone.
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Long Black Plates, Square Getter. RCA, Made in USA. ECC83 12AX7A Valve Tube. Fully Tested on AVO VCM 163.
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2 x 12AX7 RCA Tubes. Tested on Enhanced Triplet E3444 Laboratory Tester prepared by Paul Hart of Ga. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.
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The GE 12AX7A Vacuum Tube is a high-quality electronic component manufactured by General Electric in the United States. This vacuum tube, with the model number 12AX7A, is designed to provide reliable and efficient performance in various electronic devices such as amplifiers and oscillators. Known for its durable construction and superior quality, the GE 12AX7A Vacuum Tube is a popular choice among hobbyists and professionals in the electronics industry.
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Sections Matched for gm to 10%. 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.
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