Add to Cart Quick view RCA / Burle Set of (2) 8122 HF Amplifier Tubes New in Packages Burle MSRP: Now: $449.99 Was: This RCA / Burle Set of (2) 8122 HF Amplifier Tubes, are New in the packages. I believe they are made by RCA and are branded with the Burle Name. These tubes were used in the National NCL-2000 Amplifier and some others including some... MSRP: Now: $449.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $449.99 Was: Subtotal: Add to Cart