I second the info on the California guy, he told me that he wouldn't sell 8802's (Mullard gold pins) unless I was a previous customer of equiptment. I ask him if Mullard made 7308's and his answer was"sort of". When I ask him to elaborate he said he didn't have time to give history lessons. I bought some Mullard 8802's from Tubeworld. To the subject of tubes from ARC, Steve Huntley is currently doing some mods on a SP 9 MKIII for me and he needed the tubes to adjust the bias to match the tubes. I could have the terminology incorrect but perhaps ARC does the same thing to each unit since there is an adjustment. Thanks to everyone for participating on this site. Richard
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?