I third or fourth the endorsement of Andy Bowman at Vintage Tube Services. Been very satisfied with every purchase and consult with him: there is no greater nor knowledgeable tube junkie on the planet. One caution with Andy: don't bother with emails. I don't think he even reads them. Visit his site at: http://vintagetubeservices.com/
and when you find a range of what you're looking for, give him a phone call. It will be time well spent. Unlike KD, he won't attempt to unload junk on an unsuspecting newbie.
and when you find a range of what you're looking for, give him a phone call. It will be time well spent. Unlike KD, he won't attempt to unload junk on an unsuspecting newbie.