NOS 12BH7A with GRAY-PLATES. NOS LOW NOISE 12BH7A. These 1960’s 12BH7A are IMPOSSIBLE to find! TUBE MUSEUM “TROPHY” QUALITY. 1960’s NOS RCA MATCHED PAIR. Made in USA in 1960s WITH ACID CODES IN GLASS.
NOS 12BH7A with GRAY-PLATES. NOS LOW NOISE 12BH7A. These 1960’s 12BH7A are IMPOSSIBLE to find! TUBE MUSEUM “TROPHY” QUALITY. 1960’s NOS RCA MATCHED PAIR. Made in USA in 1960s WITH ACID CODES IN GLASS.