Abstract: An asymmetrical anode arrangement is disclosed for the final stage of a short-wave transmitter of the can type. A transmitting tube is disposed coaxially within a cylindrical housing. A first hollow cylindrical conductor having an opening at the top is mounted to surround the tube and be coaxial therewith. A second thinner cylindrical conductor is disposed outside and adjacent to the first conductor and parallel to the tube axis. A first slide, having openings for the first and second conductors, is mounted within the housing for connecting the housing wall to the first and second conductors. A second slide connects the second conductor to a collector mounted within the housing. Anode voltage is supplied by way of a conductor disposed within the second conductor. A vapor exhaust duct may be coupled to the tube through appropriate concentric openings in the housing, first slide and first conductor.