Dual 1219 - Tonearm Calibration and Adjustments; Fine Balancing and Alignment; Setting Stylus Tracking Force; Anti-Skating Force Adjustment

‘3, Unlock the tonearm, and lift it off the
rest post.
4.
Ifthe
tonearm
does
not
remain
in
ho-
rizontal
position,
slide
the
counterbalance
back
and
forth
until
the
tonearm
is
ap-
proximately
balanced
for
the
weight
of
the
cartridge.
Then
tighten
the
set-screw.
5.
For
fine
balance,
turn
the
counterba-
ynce,
Each
click-stop
represents
0.01
‘gram,
The
tonearm
is
precisely
balanced
‘when
edge
"A"
of
the
tonearm
head
and
‘edge
"B"
of
the
tonearm
rest
are
at
equal
height.
(Fig
17)
Another
way
to
judge
is
to
tap
the
chassis.
The
tonearm
should
return
to
the
horizontal
by
itself.
Fig. 17
Note:
Prociso
bala
specially
im-
portant
with
cartridges
that
require
a
low
stylus
force.
This
procedure
need
be
done
‘only
once,
unless
you
install
a
different
Setting stylus force
‘Once the tonearm is balanced, set stylus
force by turning the stylus force dial to
the number recommended for your car-
tridge. Stylus force Is continuously ad-
justable from zero to 5.5 grams, with an
accuracy of + 0.1 gram. The 1219 will
function properly with as little as 0.25
gram stylus force, which allows it to track
2
Fig. 18
flawlessly at the correct stylus force re-
‘commended by the manufacturer of your
cartridge. See the instructions enclosed
with
your
cartridg
Too low a stylus force produces distor-
tion
on
loud
recorded
passages.
Too
high
fa
stylus
force
can
cause
excessive
wear
‘on the stylus and record.
For
Duals
supplied
with
tactory-installed
cartridges,
see
the
special
instructions
enclosed.
Antl-skating
The numb
skating scales correspond to stylus force.
Use
the
red
scale
for
conical
styli,
and
the
black
scale
for
elliptical
styli.
Using
the
correct scale for the type of stylus in your
cartridge,
set
anti-skating
to
the
number
previously
set
for
stylus
force.
Fig. 19
‘These settings are precise for conical
styli with 06 mil radii and for elliptical
styli with 0.2 x 09 mil radii, The table
below allows you to make slight adju:
ments
in
these
settings
for
conical
styli
of other radil
Anti-skating
eliminates
the
tendency
of
‘any tonearm with an angled head to move
toward the of the record faster
ing groove would normally
move it. The “skating” force, if not elimi-
results in more stylus force against
the inner groove wall than against the
outer groove wall.
Tracking Anti-skating compensation
force for stylus radil in microns
*p a al
05 070 0,60 0,55
10 415 1,10 1,05
15 175 1,65 1,65
20 230 215 2:05
25 290 265 2,55
3,0 345 3,20 3,05
35 410 3,75 3,55
40 480 4,30 4,10
45 550 490 4,60
5,0 = 550 5,15
Tracking Anti-skating compen:
force for stylus radii in microns
“pt
7
19
Hiptee
08
045
040
OS
4,0
095
090
10
15
1450140
4,8
20
19519020
25
24524028
30
295
290-30
35
3453.35,
395 3.85
440 4,30
490 480
Note: If you use @ moistening device for
cleaning
your
records
as
they
are
being
played, the moisture on the record will
reduce the friction between the stylus and
groove by about 10%. This will also
duce
skating
by
that
amount.
Thus,
under
these conditions, the anti-skating for any
stylus can be reduced by 10!