7591 | 7868 | 6GM5
The 7591 is a great tube with a unique sound and character. The 6GM5 and 7868 are essentially the same tube but they do have different pin-outs so they would require an adapter to be ran in place of the 7591.
The 7591 is a great tube with a unique sound and character. The 6GM5 and 7868 are essentially the same tube but they do have different pin-outs so they would require an adapter to be ran in place of the 7591.