7591 JJ

The JJ 7591S is a high quality option for both guitar and home audio amps. It's loaded with warm tone and is physically very similar to NOS 7591 tubes so installation is a breeze.

Close in size to original 7591, this octal based tube is an excellent substitute for any NOS 7591. It fits in HH Scott and other vintage amps, and works great in amps like Ampeg Mercury.