Tube replacement for the Calypso?

I am looking for suggestions to replace my tubes in my new Calypso. Also can you give me a source for the new tubes.

husk0110-12-2004 9:54pm

tvad Details Discussions Posts This discussion Message User 9,467 posts 01-28-2005 at 05:50am Copy Comment URL Report Comment Edit Delete Has anyone tried 5751 tubes instead of 12AX7? Apparently the 5751s were developed to address the problems inherent with 12AX7 tubes.