EI for RCA 12AX7A ECC83 Audio Tube Tested 83/81 SMOOTH PLATE RARE
RCA Mullard 12AX7A ECC83 Audio Tube. SMOOTH PLATE RARE. Made in Great Britain. 1940, 40s, 1950, 50s, 1960, 60s, 1970, 70s. Tube(s) shown in pictures will be the exact tube(s) you will receive.