12AU7WA 6189 ECC802S NOS RCA USA TRIPLE-MICA BLACK PLATE BALANCED MATCHED PAIR
Matched PAIR NOS RCA 12AU7-WA vacuum tubes, also known as 6189 or ECC802S. See attached photo. 6189 = ECC802S. Here is a great opportunity to own a fantastic pair selected from 100 new in the box RCA 12AU7WA.