suggestions for 6cg7/6fq7 preamp tubes

i have a rca and a sylvania in preamp now,sounds good except for a slight grain up top,,anybody famillier with these tubes?

raytheprinter09-08-2004 2:49am

ed_sawyer Details Discussions Posts This discussion Message User 588 posts 09-09-2004 at 02:08am Copy Comment URL Report Comment Edit Delete rca clear top is certainly one of the best, esp. the USA made ones.
raytheprinter OP Details Discussions Posts This discussion Message User 1,234 posts 09-09-2004 at 02:39am Copy Comment URL Report Comment Edit Delete thanks Ed!!
raytheprinter OP Details Discussions Posts This discussion Message User 1,234 posts 10-03-2004 at 03:39am Copy Comment URL Report Comment Edit Delete i visited a web site where they sold tubes that are "low noise"only 10% of the tubes they test make it to this catagory,is it worth the extra money to go low noise matched tubes?