36710 - Electron tubes (Miscellaneous)
36711 - Receiving type electronic tubes, except cathode ray
36712 - Cathode ray picture tubes + Rebuilt
3671217 - - Television tubes: Black & White, New
3671218 - - Television tubes: Black & White, Rebuilt
3671220 - - Television tubes: Color, Rebuilt
3671221 - - Television tubes: Color, New: =<17 in
3671223 - - Television tubes: Color, New: 18-19 inch
3671225 - - Television tubes: Color, New: =>20 in
36713 - Transmittal, Industrial & Special purpose electron tubes, except X-ray
3671312 - - High vacuum tubes: Triodes & Multigrid external anodes
3671317 - - High vacuum tubes: other + Diodes, Triode & Multigrid internal anodes
3671323 - - Gas & Vapor tubes: Thyratrons + Hydrogen
3671326 - - Gas & Vapor tubes: Other
3671331 - - Klystrons: Amplifiers
3671336 - - Klystrons: Reflex
3671341 - - Klystrons: Other
3671345 - - Magnetrons: Pulsed, Fixed & Tunable
3671350 - - Magnetrons: other + Cross-field & CW
3671355 - - Traveling wave tubes: CW: =>10W CW power output rating
3671361 - - Traveling wave tubes: CW: <10w CW power output rating
3671365 - - Traveling wave tubes: Pulsed power: =>1 kW peak power output rating
3671366 - - Traveling wave tubes: Pulsed power: <1 kW peak power output rating
3671370 - - Light sensing tubes: Camera tubes, Photo emissive & Photo conductive
3671373 - - Light sensing tubes: Image intensifiers & Converters
3671376 - - Light sensing tubes: Photo multipliers & Other
3671379 - - Light emitting devices: Storage tubes: Electrical readout, all sizes
3671381 - - Light emitting electron storage tubes, all sizes
3671382 - - Light emitting devices: Storage tubes: Direct view, all sizes
3671385 - - Light emitting devices: Storage tubes: CRT's, Industrial & Military
3671386 - - Light emitting electron cathode-ray tubes (CRT) Industrial & Military, Color
3671387 - - Light emitting electron cathode-ray tubes (CRT) Industrial & Military, Monochrome
3671388 - - Special display devices + Alphanumeric readout tubes: Figure indicating tubes
3671391 - - Special display devices + Alphanumeric readout tubes: Other
3671392 - - Traveling wave tubes: Backward wave
3671396 - - Miscellaneous special purpose tubes
36714 - Receiving type electron tubes, incl CRT
3671401 - - Receiving-type electron tubes, all types
3671405 - - Cathode-ray television picture tubes, Black & White, New & Rebuilt
3671411 - - Cathode-ray television picture tubes, Color, New, 19 inch & under (49 cm & under)
3671413 - - Cathode-ray television picture tubes, Color, New, 20 inch (50 cm)
3671415 - - Cathode-ray television picture tubes, Color, New, 21 inch - 25 inch (51 cm thru 63 cm)
3671417 - - Television tubes, incl Any defective tube that has been repaired or Rebuilt: Black & White, New
3671418 - - Television tubes, incl Any defective tube that has been repaired or Rebuilt: Black & White, Rebuilt
3671419 - - Cathode-ray television picture tubes, Color, New, 26 inch & over (66 cm & over)
3671421 - - Television tubes, incl Any defective tube that has been repaired or Rebuilt: Color, New: 17 inch or less
3671423 - - Television tubes, incl Any defective tube that has been repaired or Rebuilt: Color, New: 18 inch & 19 inch
3671425 - - Television tubes, incl Any defective tube that has been repaired or Rebuilt: Color, New: 20 inch or more
3671426 - - Cathode-ray television picture tubes, Color, Rebuilt
36715 - Electron tube parts
3671XX0 - - Electron tubes (Miscellaneous - Volume)
3671XX2 - - Electron tubes (Miscellaneous - Speciality)