Image Orthicon Camera Tube
The image orthicon is a low-light sensitive photocathode tube used in vintage broadcast television cameras, featuring electron multiplication for superior sensitivity. It qualifies under HTS 8540.20.20.80 as an 'other' television camera tube with cathode-ray scanning, separate from receiver picture tubes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If radiation-hardened for space/nuclear applications
Radiation-tolerant tubes (≥50k Gy dose) specifically defined under 8525.82 subheading note.
If modified as discrete semiconductor signal converter
If re-engineered without vacuum envelope, treated as other electrical machines in 8543.
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Import Tips & Compliance
• For museum/retrofit imports, provide provenance documentation to avoid commercial use scrutiny
• Test for vacuum integrity pre-shipment; leaks cause customs rejection as 'spent' under 8549 notes
• Pair with compatible power supply certifications to demonstrate complete camera tube function
Related Products under HTS 8540.20.20.80
Plumbicon Television Camera Tube
The Plumbicon is a specialized lead oxide photoconductive television camera tube used in broadcast studio cameras for high-quality image capture. It functions as a photocathode tube converting light into electrical signals via a cathode-ray mechanism, falling under HTS 8540.20.20.80 as a cathode-ray tube for television cameras, distinct from consumer color picture tubes.
Vidicon Camera Tube
Vidicon tubes are photoconductive vacuum tubes used in early closed-circuit television (CCTV) and industrial camera systems for converting optical images to video signals. Classified under HTS 8540.20.20.80 as 'other' cathode-ray tubes specifically for television camera applications, excluding consumer TV receiver tubes.
Return Beam Vidicon Tube
Return beam vidicon (RBV) tubes feature scanned electron beam return for high-resolution monochrome imaging in early satellite and aerial cameras. Falls under HTS 8540.20.20.80 for other photocathode cathode-ray tubes designed for television camera use.
Silicon Intensifier Target Camera Tube
SIT tubes use silicon targets with electron beam intensification for extremely low-light television camera applications like astronomy. Classified in HTS 8540.20.20.80 as other cathode-ray television camera tubes with photocathode elements.
Newvicon Camera Tube
Newvicon tubes improve on plumbicon technology with new photoconductive layers for enhanced color TV camera performance. HTS 8540.20.20.80 covers these as other cathode-ray tubes for television cameras, excluding consumer display types.
Secondary Emission Multiplier Tube
These photocathode tubes amplify electron signals through secondary emission for high-gain television camera applications. They are 'other' cathode-ray tubes under HTS 8540.20.20.80, designed specifically for image converter/intensifier roles.