If you can find some, try a matched set of the late 60's, Telefunken e88cc..
WANTED: Help stuck in tube rolling insanity
hi:) i need low noise, non microphonic 6922, e88cc, 6dj8, ecc88, 7308 or e188cc tubes to try before i spend any more money in tube rolling frustrationland. i KNOW you know what i mean..lol. i'm wondering if there's any of you out there in the san diego area who have 2-4 spare 6922, e88cc, 6dj8, ecc88, 7308 or e188cc tubes laying around that you would mercifully let me try for my line stage in my audio research sp-10? if they work,i am willing to pay fair price and/or trade for...? thanks in advance ;)