Albert, If you have an account w/Svetlana, do you know what the deal is with the Svet 300Bs? I can't find them anywhere, and I've heard that Svet is no longer making them. It would be disappointing if this is true.... Svet won't take phone calls from the great unwashed, so I can't get any definitive answers. New Sensor was no help when I asked them either.
Tubes & Audio Research Corp.
When Audio Research ships a set of tubes, they have them individually marked to match a certain area where they want you to install them. As long as they are the same type of tube does it make a difference which tube goes where? Are you better off buying replalcement tubes through Audio Research and pay 3 times the normal price for them for the testing they do?