Photomultiplier Cathode-Ray Tube
The Photomultiplier Cathode-Ray Tube is a photocathode tube that functions as a television camera tube in low-light scientific and military imaging systems. It amplifies photon signals via electron multiplication, fitting the description of television camera tubes under tariff item 8540.20.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a part
Parts of cathode-ray tubes are classified separately under this item.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Clarify the tube's use in imaging systems to distinguish it from photomultiplier tubes of other headings
• Provide technical specifications showing photocathode operation
• Verify if the tube is subject to export controls
Related Products under Tariff item 8540.20.00
3-CCD Color Prism Camera Tube
The 3-CCD Color Prism Camera Tube uses a prism to split incoming light into RGB components, each captured by separate color cathode-ray tubes for superior broadcast quality. It qualifies as a color television camera tube under tariff item 8540.20.00.
Broadcast Studio Color Camera CRT
The Broadcast Studio Color Camera CRT is designed for professional TV studios, capturing live color footage with high resolution via electron beam scanning on a color target. It falls under tariff item 8540.20.00 as a specialized television camera tube.
Color Camera Tube with Shadow Mask
The Color Camera Tube with Shadow Mask incorporates a shadow mask for precise electron beam alignment to color phosphors, essential for accurate RGB reproduction. It is classified under tariff item 8540.20.00 as a color cathode-ray camera tube.
Color Field Sequential Camera Tube
The Color Field Sequential Camera Tube uses field-sequential color filtering with a single high-speed color CRT for television cameras, common in early color TV systems. It is classified under tariff item 8540.20.00 for color cathode-ray tubes.
Color Image Orthicon Tube
The Color Image Orthicon Tube is an advanced cathode-ray tube for television cameras using low-velocity electron scanning for high-sensitivity color imaging in low light. It is classified under tariff item 8540.20.00 for its color photocathode technology.
Color Security Surveillance Camera Tube
The Color Security Surveillance Camera Tube is a color cathode-ray tube for CCTV security cameras providing 24/7 color monitoring for television-style surveillance systems. It is classified under tariff item 8540.20.00 as a color TV camera tube.