KT66 ORIGINAL MARSHALL SPARES SHUGUANG MATCHED QUAD VALVE TUBE
KT66 ORIGINAL MARSHALL SPARES. THESE ARE THE BEST VALUE AND QUALITY KT66 AVAILABLE. SUITABLE FOR ANY AUDIO OR GUITAR AMPLIFIER USING KT66 TUBES. MADE BY SHUGUANG CHINA. ALL TUBES ARE COMPUTER TESTED AND BATCH MATCHED BY MARSHALL.