High quality tubes. BEST ECC81 / 12AT7 version! PREMIUM quality. ALL tubes with <> -mark on bottom and FAT o -getter.RARE and EARLY version. CLOSE codes. OLD STYLE codes. Codes indicate that tubes were made in1957.
2x ECC81 / 12AT7 TELEFUNKEN tubes - FAT getter - ECC 81 - 1956
4x ECC81 / 12AT7 VALVO tubes - YKA / YKB - COIN base / D getter- ECC 81 - 1953
ECC81 12AT7 MULLARD 10M SERIES RARE GOLD PIN SEALED NOS BOXED
ECC81 (12AT7) JJ Electronic Vacuum Tube Valve Tested UK stock
12AT7 ECC81 NOS GE USA Valve Tubes
12AT7 ECC81 MULLARD VINTAGE 1950's 3 HOLE ANODE NOS VALVE TUBE (T14B)
