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The 12AT7 (ECC81) is a medium-mu twin triode widely used as driver, phase splitter and reverb driver. Shuguang’s 12AT7 was design-finalized in 2001, with the Nature Sound 12AT7-T added in 2014.

Lineup
12AT7
Medium gain (mu = 60), excellent as driver and phase inverter.
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.




