Add to Cart Quick view Sylvania FAA 6146W NOS Vacuum Tube Tested 100 % #6 General Electric MSRP: Now: $20.00 Was: This Tube has been tested on a Dyna-Quick Model 700 Dynamic Mutual Conductance Tube Tester. All NOS tubes I sell measure 100 % Grid Emission. The tube in the photograph is the actual Tube in this listing. A generic tube box is included as the... MSRP: Now: $20.00 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $20.00 Was: Subtotal: Add to Cart