|   | VTU-6397D4X | Communications & Power Industries, Inc. |  |  | 500w dbs-band helix twt series | 
    |   | VTU-6397D5 | Communications & Power Industries, Inc. |  |  | 750w, Ku-band helix twt series | 
    |   | VTU-6397D7 | Communications & Power Industries, Inc. |  |  | 750w, Ku-band helix twt series | 
    |   | VTU-6397M5 | Communications & Power Industries, Inc. |  |  | 750w, Ky-band helix twt series | 
    |   | VTU-6397T3 | Communications & Power Industries, Inc. |  |  | 750w, ku-band helix twt series | 
    |   | VTU-6397T3A | Communications & Power Industries, Inc. |  |  | 750w, ku-band helix twt series | 
    |   | VTX-6379E1 | Communications & Power Industries, Inc. |  |  | dual C/X-band helix twt series | 
    |   | VTX-6389G4 | Communications & Power Industries, Inc. |  |  | 2.5kw X-band helix twt series | 
    |   | VTX-6389G5 | Communications & Power Industries, Inc. |  |  | 2.5kw X-band helix twt series | 
    |   | VTX-6389L3 | Communications & Power Industries, Inc. |  |  | 2.5kw X-band helix twt series | 
    |   | VTA-6193A4 | Communications & Power Industries, Inc. |  |  | 40w, 26.5-40.0 ghz helix twt | 
    |   | VTA-6193A41 | Communications & Power Industries, Inc. |  |  | 40w, 26.5-40.0 ghz helix twt | 
    |   | VTA-6193A4X | Communications & Power Industries, Inc. |  |  | 40w, 26.5-40.0 ghz helix twt | 
    |   | LD7215 | NEC |  |  | 6 ghz, 3 kW, helix type, ppm focusing, high power gain, flat gain variation | 
    |   | LD7215C | NEC |  |  | 6 ghz, 3 kW, helix type, ppm focusing, high power gain, flat gain variation | 
    |   | LD7215D | NEC |  |  | 6 ghz, 3 kW, helix type, ppm focusing, high power gain, flat gain variation |