Dual 1218 - Page 11

The skating force compensation adjustment
knob on the chassis makes it possible to
adjust anti-skating force while a record is play-
ing — important when going from a dry record
to a moistened one,
For the two types of stylus in frequent use
today there are two different adjustment
scales
Red: for spherical styli with 15 micron radius
according to DIN 45 500
Black: for elliptical styli with ra
microns by 18 to 22 microns.
i of 5 to 6
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Turn the adjustment knob to the number
that corresponds to the stylus force being used.
Thus, if you have set the stylus force to 1 gram,
set the anti-skating knob to *1” also (on the
appropriate scale for the type of stylus you
have).
In case of stylus tips with radii other than
those given above, you can select the correct
anti-skating setting from the following table,
Stylus force
Tracking Anti-skating compensation
force for stylus radii in microns
“p“ 9 ibe ST
0,5 0,70 060 055 0,5
1,0 1,15 1,10 1,05 1,0
1,5 175. 165 155 1,5
2,0 2,30 2,15 2,05 2,0
25 290 265 255 25
3,0 345 320 3,05 3,0
3,5 410 3,75 355 35
4,0 480 430 410 4,0
45 550 490 460 4,5
5,0 - 550 5,15 5,0
Tracking Anti-skating compensation
force for stylus radii in microns
p' 17 19 elliptical
0,5 0,45 0,40 0,5
1,0 0,95 0,90 1,0
1,5 1,45 1,40 1,5
2,0 1,95 1,90 2,0
2,5 2,45 2,40 2,5
3,0 2,95 2,90 3,0
3,5 3,45 3,35
4,0 3,95 3,85
4,5 4,40 4,30
5,0 4,90 4,80
Note: If you play a moistened record,
skating force is reduced by approximately
10 %. Therefor reduce the given value of
skating compensation by about 10 %.
Vertical Tracking Angle
To maintain the correct vertical tracking
angle when the unit is used in multiple-
play as well as when it is used as a single-
play turntable, the pick-up head (cartridge
holder) is equipped with changeover device.
Selector Knob on “'s””
Position for Single Play.
The cartridge is adjusted for one record on
turntable so that the tonearm is parallel to the
record when playing.
Fig. 19
Selector Knob on “m”
The cartridge is adjusted to the center of
a stack of six records.
The change from “s” (Single Play) to “m”
(Multiple Play) must also be made, if the
top record of a stack laying on the turntable
is being played or repeated.
Cue control
Your automatic turntable is equipped with
a precise, jolt-free, silicone-damped tonearm
lifting device. With this cue-control, the tone-
arm can be placed over any spot on a
record, then lowered more gently than pos-
sible by hand, The rate of descent is inde-
pendent of temperature
Its operating lever has two positions:
playing position Y,
lift position Y, in which the tonearm is
lifted off the record surface. A gentle move-
ment backwards on the lever starts the tonearm
descending. The height of the stylus above
the record in the Y position can be ad-
justed from zero to about 6 mm (1/4”) with
screw®
Fig. 20
Pitch-control
Each of the three standard speeds (33 1/3,
45 and 78 rpm) can be varied about 6 %
(approximately one musical semitone). The
speed can be checked with the stroboscopic
disc on the turntable platter, When the disc is
illuminated by a light powered from alternating
household current, the ring of lines corres-
ponding to the choosen speed will appear to
stand still when the turntable is rotating at the
correct speed. Pitch is varied by using the
pitch control knob ©
Important! To avoid possible slippage between
idler, motor pulley and turntable, do not touch
any of the running surfaces with your fingers,
When shipping your unit, please packkeit
in the original carton.
Adapting for other power frequency
Adapting the unit for use at a different
powerline frequency is accomplished by
changing the motor pulley (A), which is
secured to the motor shaft by a screw and
can be reached by removing the turntable
platter.
Fig. 22
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