phillip holmes wrote:
> What kind of cartridge do you use? You could buy several different
> stylus tips to experiment with.
> Mono LPs were cut with a wider groove, so that a microgroove stylus will
> ride much further down in the groove than it should.
The width of the cut varied widely over the years and over the labels.
It is quite common to need a 78-rpm stylus for EMI LPs even into the
very early stereo era; in contrast, even the early (US) Columbias can be
played well with a modern elliptical stylus for 33s.
The ability to de-warp a recording depends on the vinyl used. RCA's
Dynagroove recordings seem to defy attempts to apply pressure when warm.
Of course, their deliberate distortion adds to the problem of getting an
acceptable result. Still worse, it appears from the reissues that the
distortions are inherent in the master tapes.
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