My tester tests for general quality, google the model if you don't know the model. I have used this tester for many years on both my own valves and the ones I sold, never had any problems.
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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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RCA 12AX7A/ECC83- Vintage Tube NOS Shop Closing. Last one. Recently tested. Guaranteed.
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7025 = 12AX7A = ECC803S. serving as a desirable ECC83 = 12AX7A tube; representing the best of its kind. THE "PERFECT 1961 RCA REAL 7025 = 12AX7A/E83CC/ECC803S". AUTHENTIC 1960'S Amplitrex AT1000 TESTED RCA 7025 SINGLE TUBE.
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They mostly date from 1966/1967. These are designated as ECC83. They are not supplied with original boxes (I doubt they ever have had original boxes).
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ECC83 12AX7A Valve Tube. RCA, Made in USA. Short Grey Plates, Halo Getter. Fully Tested on AVO VCM 163.
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NOS Ei For National/12AX7A/LONG SMOOTH PLATES/O GETTER/HIGH GAIN/MAXI TEST
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The TOSHIBA 12AX7A valve tube new old stock is a high-quality audio component with a vintage appeal. Made in Japan, this preamp tube features the ECC83 model and is ideal for those seeking authentic sound and vintage performance. With its reputable brand name and superior quality, the Toshiba 12AX7A tube is a valuable addition to any audio enthusiast's collection.
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