PLATINUM Match 2pcs RCA Conn CLEAR TOP 12AU7 ECC82 5814 TUBES Cryo version | eBay
Best Pair) 6CG7=6FQ7 RCA clear top NOS chrome electro-static shield between plates 1962 (7.0/7.5ma and 7.2/8.2ma) (rare) - Tube World Express | Rca, Clear top, Marantz
12AU7 RCA Clear Top | TubeDepot.com
12AU7 Tube NOS Balanced RCA Clear Top Side D Getter ECC82 5814 5963 CV4004 CV491 | eBay