Like a broken record, I keep on saying anyone with tube equipment should buy their own tube tester.
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most testers of that era used cheap hardware, thin vinyl, so don't let the beat up look concern you IF the seller says tested, works ....
those numbers you mentioned: "How do you read tubes that are marked :(I.e) 95/91 or 46/41"
are not tube identification numbers, there are markings on the tubes themselves, i.e. 12ax7; 12au7; 6sl7; kt88; el34; ...
pull them out, rotate them in the light until you can see the marking on the side of the glass.
they have key slots, or missing pin holes, so you cannot reinstall them incorrectly, BUT, make sure you know which socket they came from/go back into.
some chassis have the tube type printed next to the sockets, some print V1, V2 ....
then there is a reference page in the manual saying V1 is ... V2 is ...
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Cary ought to be able to help you, and simply search the internet with your model number, a lot of info is out there.
