I have reduced that kind of artifacting (i.e. introduction of noise by the reproducer) on Edisons, but never fully eliminated it.
The clearest I've got is using a non-waxed dental floss for the link. When I used a waxed floss it resonated on certain notes, but that disappeared when I changed the floss to non-waxed. Nothing else was changed, just that, and much of the artifacting disappeared.
Original links have metal-to-metal contact at both ends, and much of that can be eliminated by using a tiny amount of floss to secure the ends (f.i. the stylus bar hook and the link end get secured by passing floss through the eye and tying it below in the hook opening)
Then there's what can happen if the pivot pin for the needle bar is slightly loose; we're not talking about a whole lot, maybe 1/10,000 of an inch, to introduce buzzing at certain notes. I was lucky enough to have several weights to choose from, so I tried out several and found one with an imperceptible amount of slop where the pin goes through. The sound is much cleaner.
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