How old is the vinyl? Much of stuff from the '60s and '70s is shot, because people were using "el-cheapo" record players with pizo-electric ceramic cartridges. Tracking at 5+ grams....VTF was adjusted by securing a penny, nickle, or dime above the cartridge :-) The highs were stripped right out of the grove...loss of treble and hiss.
By the '80's, better tables with MM cartridges were used by many more people, as mid-fi spread.
By the '80's, better tables with MM cartridges were used by many more people, as mid-fi spread.