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The 211 is the classic 1 kV transmitting triode adopted by high-end audio for majestic single-ended amplifiers. Shuguang produces the standard 211 (GL-211 lineage since 1985) and the Nature Sound 211-T.
Lineup
211
Classic transmitting triode – grand, effortless sound.
211-T (Nature Sound)
Nature Sound premium version, design-finalized in 2012.
Specifications
Click an image to view the full-size specification sheet.
📄 Shuguang Catalogue 2024 (PDF)
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*We also accept custom orders for factory-level burn-in, precision testing, matched pairs / quads, special grading and OEM requirements. For a quotation or consultation, please contact us here.