Capacitor board for Dynaco SCA-35 tube amplifier by Audio Regenesis with installation manual. From the manual: 'We feel it is the single most significant upgrade you can make to your SCA-35... it is designed to integrate easily into your amplifier without chassis modifications of any kind... EFB(tm) is a new and innovative way to convert your SCA-35 to fixed bias operation, and reveal it's full potential. Rated power output will be maintained with both channels driven, and distortion significantly reduced. The EFB(tm) feature, when combined with increased power supply capacity, provides an outstanding upgrade to your SCA-35."

Benefits: Increased output power, reduced distortion, reduced bias current for longer tube life.

Note: Requires a matched quad of output tubes

Free shipping to cont US. Thanks for looking and please check out my other listings.