810 Transmitter / Modulator

Cetron / United / National matched pair of genuine NOS (New Old Stock) 810 high-power transmitting triode vacuum tubes in Original Boxes Tested   **All the tubes I sell are tested and come with a money back, satisfaction...

Cetron matched pair of genuine NOS (New Old Stock) 810 high-power transmitting triode vacuum tubes in Original Boxes Tested   **All the tubes I sell are tested and come with a money back, satisfaction...

Cetron matched pair of genuine NOS JAN 810 high-power transmitting triode vacuum tubes Tested   **All the tubes I sell are tested and come with a money back, satisfaction...

RCA matched pair of genuine NOS (New Old Stock) 810 high-power transmitting triode vacuum tubes in Original Boxes Tested   **All the tubes I sell are tested and come with a money back, satisfaction...