Add to Cart Quick view RCA 810 Vacuum Tube, High Power Transmitting Triodes Used, Tested, in Excellent Condition RCA MSRP: Now: $94.99 Was: RCA 810 Vacuum Tube, High Power Transmitting Triodes Used, Tested, in Excellent Condition **All the tubes I sell are tested and come with a money back, satisfaction guarantee** Each one of the stock I have, has been tested in a Collins... MSRP: Now: $94.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $94.99 Was: Subtotal: Add to Cart