RCA 6189 12AU7 ECC82 ECC802S Black Plates Halo Getter Long Life E82CC Tested
6189 JRCRCA Military 12AU7 ECC82 ECC802S Black Plates Halo Getter Long Life E82CC. Made in USA. (see photos for full details). Tube #1: JRC6189 RCA. Date Code: 63-09 (1963?).