2C51 Beam Power Triode Tube
The 2C51 is a subminiature beam power triode vacuum tube for compact audio output stages in portable equipment. Falls under HTS 8540.89.00.40 as a thermionic triode with beam forming electrodes. Used in military communications and vintage hearing aids.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If installed in finished hearing aid amplifier
Complete hearing aid equipment classifies under heading 8518, not tube components.
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Import Tips & Compliance
• Document subminiature 7-pin construction and rigid construction for rugged applications
• Include maximum plate voltage ratings (250V) and output power specs (150mW)
• Declare MIL-SPEC compliance for military surplus tube imports
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