Dual 1215 User Manual

Fig.
17
During the
balancing
of
the tonearm
the
operating
switch
must'be
in
its
neutral
position,
so
that the tonearm
is disengaged
from the automatic
mechanism.
To be sure,
lock the
tonearm on
the rest
post,
then
rotate the turntable
platter
by
hand, clock-
wise, until
the operating
lever
returns to
its neutral
position.
Setting stylus
force
Once
the tonearm
is balanced,
set the
stylus
force by
turning the stylus
force
dial. The force
is
continuously
adjustable
from zero to 5.5
grams
with an accuracy
of
+
0.1
gram.'The
unit
will function
pro-
perly
with
as
little
as 0.5
gram
stylus
force.
Every cartridge
has an
optimum
tracking
force,
which
provides
the
best
reproduc-
tion. For
the best
figure for
your
cartridge,
consult
the information
provided
with it.
For factory-installed
cartridges,
you
will
find all
necessary details
in a leaflet
that
accompanies
these
instructions.
Too
low a stylus
force
produces
distortion
in loud
recorded
passages.
Too high a
stylus force
can damage
the
stylus and
record.
Tracking-balance
control
(anti-skating)
Skating
force is especially
troublesome
in
stereo
records. The resulting
inward
pull
on the
tonearm results in a
higher
pressure
against
the
(inner)
groove
wall than against
the
(outer)
wall.
To compensate
for this skating
force and
eliminate
its effects, a
very accurate coun-
terforce
-
accurate
in
both
magnitude and
direction
-
must
be
applied to
the tonearm.
To compensate
for anti-skating,
the
unit
has a
precise
anti-skating feature.
The correct amount
of anti-skating is
applied simultaneously
with tracking force
by
means of a synchronized
cam. No
separate adjustment
is required.
Cue-control
Your
player
is
equipped
with a
precise,
jolt-free,
silicone-damped
tonearm
lifting
device.
With this cue-control,
the
tonearm
can
be
placed
over any spot
on a
record,
then lowered
more
gently
than
possible
by
hand.
The rate
of
descent
is independent
of
temperature.
Its
operating
lever has
two
positions:
playing
position
t
lift
position
v
,
in which
the tonearm is
lifted off
the record surface.
A light
tap
backwards
on
the lever
starts
the tonearm
descending.
The height of the
stylus above
the
record in the
!
position
can be ad-
justed
from zero to about
6
mm
(t/a")
with
screw
@.
Fig.
19
Pitch-Control
Each of
the three
standard speeds
(33'l/3,
45 and
78 rpm) can
be varied
about 6/6
(approximately one
musical'semitone).
The speed
can be checked
with the
stro-
boscopic
disc
is illuminated
by a
light
(preferably
fluorescent)
powered
from
alternating
household current,
the
ring of
lines corresponding
to the choosen speed
will
appear
to
stand
still when
the turn-
table
is rotating at the correct speed.
Fig. 20
Pitch is
varied by
using
the
pitch-control
knob
@.
Fig. 18
11

Dual 1215 Specifications

General

Brand	Dual
Model	1215
Category	Turntable
Language	English