Description
HIGH GRADE New 12AT7 from China. Good gain.
All Ruby pre-amp tubes are properly tested for quality assurance.
The Penta Labs 12AT7 is the Chinese version of the Shuguang 12AT7. They are very warm and articulate, with low noise and microphonics. The Penta / Shuguang 12AT7 is made in China by the Shuguang factory exclusively for Penta Laboratories. All Ruby Tube products are test and matched with a 6 month warranty.
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