6CA4 SYLVANIA VACUUM TUBE
Item Tag: Vacuum Tube
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General Electric 12AX7 Vacuum Tube Ex. Made in Usa
General Electric 12AX7 Vacuum Tube Ex. Made in Usa . Condition is New. Shipped with USPS Ground Advantage.
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***L@@K***Matched Pair Magnavox 12AX7 JAPAN HIFI TUBES Tested ***MAKE OFFER***
Almost all the paint is gone, but these have been Hickok 6000 tested AND they have been tested in a Fisher Phono Preamp for hum, noise, microphonics and overall tone. These are very nice tubes. They made “Neighbor” By Ugly Kid Joe sound awesome! The Mc225 and the Altec 604c’s help a lot. The prettiest girls don’t need makeup.
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Matched Pair Telefunken 12AX7 Smooth Plate Tubes TV7 Tested NOS Worn Labels
Both tested NOS matched on a professionally calibrated TV7B/U tube tester with the following results (32 is minimum): Tube 1- 54/54 Tube 2- 56/56
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(2) Sylvania JAN-12AX7WA Mil Spec Tubes Gray Plate O Getters Tests Strong TV-7BU
(2) Sylvania JAN-12AX7WA Military Spec Preamp Tubes | Gray Plates | O Getters. Tube 1 tests at 52/54 and tube 2 at 46/50 with 32 being the minimum score for a good tube (with 65% life remaining).
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NEW 12AX7 / 7025 vacuum tubes, LOW NOISE, Electro Harmonix
In all samples tested, noise and microphonics could not be detected.
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⭐️1pc Siemens 12AX7 ECC83 Coded TV7 Tested Strong Life Test O-Getter Short Plate
12AX7 ECC83 12AX7A. O Getter Tube. Short Grey PLATE. TUBE’s TEST RESULT’s TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! Perfect Balanced “short” Grey Plates!
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Nice RCA 7025 Tube Low Noise 12AX7 ECC83 Triplett Tested 12AX7A 6681 5751 L@@K!!
Here we have for sale is a nice RCA 7025 tube. Low noise version of the 12AX7 ECC83 tube. 14mm Grey Plates with ring getter. Solid strong well BALANCED used tube with good useable life remaining to enjoy and bargain priced.
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Rare NOS Siemens 5751 Tubes 3 Mica Matched E83CC 12AX7 ECC83 B339 NIB L@@K!!
14mm grey plates and O-getters. Outstanding set of tubes here! NIB with NOS+ testing and Balanced Triodes. Tubes make up an excellent Matched pair. Date Matched set. Considered one of the best sounding 5751 tubes made.