Dual 1019 - Continuously Variable, Direct-Dial Anti-Skating Compensation; Applying Anti-Skating Force with the 1019

PRECIION DOBBIGN
AMD ENGINEERING FEATURER
CONTINUOUSLY VARIABLE,
DIRECT-DIAL
ANTI-SKATING
COMPENSATION
What You Should Know About Skating
Skating refers to the side-thrust imparted to the
stylus from the offset angle of the tonearm head
and the friction between the stylus and the rotat-
ing record.
This causes the stylos to “skate” toward the center
of the record, thus causing increased force aguinst
the inner groove and correspondingly leas force
aginst the outer groove, This results in distortion,
increased wear on the inner groove and wheven
wear on the stylus itself,
Skating is acluwlly not a serious problem with
ordinary toncarms, a5 their bearing friction im the
piveal is generally high enough to cancel oul
minimize the tendency to skate. Of course, tesa
friction
high
enough
to
prevent
skating
ls
also
high
enough to compromise tracking performance al
the ultra-lightweight forces now made possible by
today's fines! high compliance cartridges,
Skating Force Actually Measurable
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tonearm bearing head © gj _ amti-skating
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The amount of skating force is directly measur-
ible, and amounts to about 12% of tracking force,
Fig, 12 illustrates the physical principle behind
hating and the forces that cate it,
A tonearm with 2 gram tracking force will thus
have a potential skating force of .24 grams, We
fay potential, since, as noted above, if a tonearm's
bearing friction is above .24 gram, il won't skate,
The bearing friction of the Dual 1019 tonearm,
on the other hand, is lower than 0.04 gram in the
horizontal plane. Thus, anti-alating compensation
of the same high order of precision — and with
Continually variable conirol — was one of the
major goals and achievements of the 1019's design,
Applying Anti-Skating Force with the 1019
Just os you set stylus force on the Dual with a
continueusly Variable direct-reading dial, so do you
sel the anli-skating compensation for that same
force. (Fig. 134.
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As shown by the bold: thee numerals in the chart,
the anti-akating compensation is calibrated for the
host commonly wed rownd atylus rackine (0.6 mul).
This calibration is abo sufficiently accurate fos
mber stylus radii as well,
What's more, for the perfectionist who wishes to
lake the fullest possible advantage of the precision
ontiakating compensation now made posible, the
alher columns indicate the adjustment to be made
for other radii from 0.4 mil to 0.8 mil, os well
as the elliptical etylus (0.2 mil x 0.9 emnil),
This means that for the first time you can actually
balance stylus forve for both stereo grooves!
All this is one more example of how Dual assures
you of the best possible performance from any
cartridge /stylus combination,