7025 (12AX7A) RCA USA LONG-PLATE D-GETTER "HOLY-GRAIL of 12AX7 TUBE" 118%/118%
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.