« Back to Our Manufactured Products
The 5AR4 / GZ34 is the slow-warm-up indirectly-heated rectifier of choice for guitar amps and hi-fi – gentle on output tubes, firm in the bass. Shuguang has produced it since 1992.
Lineup
5AR4
The standard modern production 5AR4.
GZ34
European designation version, design-finalized in 2009.
Specifications
Click an image to view the full-size specification sheet.
📄 Shuguang Catalogue 2024 (PDF)
Online Shop »
*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.