JJ 7591S Power Vacuum Tube

The JJ 7591S is a modern beam-power tube designed as a replacement for vintage 7591 tubes, commonly used in classic hi-fi and guitar amplifiers, offering up to 19 watts of plate dissipation, with a warm, full-bodied tone, smooth midrange, and strong bass response, making it ideal for restoring vintage amps like those from Fisher, Scott, and Ampeg, while maintaining the original sonic character with improved reliability and availability.