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Idiomas disponibles
The anti-skating mechanism (3) of your turntable fulfills this
requirement.
Separate calibrations are provided for the stylus types used al-
most exclusively today, according to the imprinted symbols:
O setting for conical stylus
© setting for biradial (elliptical) styli
The setting of anti-skating compensation
corresponds to the
setting of stylus pressure:
Turn the anti-skating knob to the
number
on
the appropriate
scale which
corresponds to the
stylus pressure you have set. That is, for a stylus pressure of
15 MN
(1.5 grams), set the anti-skating
knob also at "1.5"
When
playing
records
moistened
with
a cleaning agent, the
skating force is reduced by approximately 30 %. In such cases
we recommend
a corresponding
30 % decrease in antiskating
compensation.
Stylus
For above subject refer to "Notes on pick-up cartridge of your
unit" attached to the Operating Instructions
In normal
use, every stylus is subject to wear and tear. We re-
commend
that it be inspected occasionally, but certainly after
approximately 300 playing hours in case of diamond styli. Your
Dual
dealer
will do this without
charge,
Worn
or damaged
(chipped) styli will grind the modulation out of record grooves
and damage
the records.
In case of replacement, obtain only
the stylus type recommend
in the Technical Data for the cart-
ridge.
Imitations cause
noticeable
loss in sound quality and
rapid record wear
Please keep in mind that the stylus holder with the diamond
tip is necessarily quite delicate in order to provide quality per-
formance.
It is, therefore, extremely sensitive to harsh handling,
accidental touch, blows, etc. Take the cartridge in the holder
to your Dual dealer for inspection of the stylus.
Pitch control
Each of the two standard speeds (33 1/3 and 45 rpm) can be
varied with the pitch control.
Adjustment is made with pitch
control knob (14) (Fig. 3)
The pitch control
maintains
the nominal
speed and provides
for individual control of tempi and pitch of reproduction, for
example, when
the pitch of recorded
music
is to match a live
musical
instrument, or when
a record
passage is to match the
length of a motion picture scene. -
The set speed can be checked with the aid of the illuminated
stroboscope
on
the outside edge of the platter.
Despite the
rotation
of the platter, the stroboscope
markings
for the
desired speed seem to stand still when the actual speed of the
platter is the same as the set speed
The platter
The effective rotating mass platter consists of two parts, the
rotor of the electronically-regulated direct-drive motor and the
aluminum
section
platter.
The dynamically
balanced
platter
with
a weight
of 1.1
kg rests directly
on
the rotor and is
secured to it by gravity alone.
Important! Remove platter prior to each transport!
Adjustment of Tonearm indexing
If playing of a record is started automatically, the pickup
needle
is lowered automatically into the run-in groove of the
record.
If the stylus of another cartridge, installed later, sets down too
far inside or outside the lead-in groove, adjustment can be
made as follows:
Move
the speed selector to "22".
Removing the decorating
strip (first lift it on the rear edge) will expose the control (8)
for tonearm indexing (Fig. 4)
12
Place a 12" record on the platter and start the unit. If the sty-
lus sets down too far inside or outside the center of the record,
turn adjusting screw clockwise or counterclockwise, respectively.
Turn the adjusting screw clockwise or anticlockwise until the
pickup needle is lowered accurately into the starter groove.
Service
All lubrication points are adequately supplied with oil prior to
delivery to the customer.
Under normal conditions, your Dual
unit should function properly for many years; do not oil any
part of your Dual turntable yourself.
Should your player ever
require service, please take it to your Dual dealer, or ask him
for the address of the nearest authorized Dual service station.
Please make sure that only original Dual replacement parts are
used.
Should
shipping of your Dual become necessary, make
sure
the packing
is adequate.
Use, if possible, the original
packing material in which you received your Dual.
Electrical safety
This player meets international safety standards for radio and
related equipment (IEC 65)
Technical Data
Current AC 50 or 60 Hz
Voltage supply
at play
12-135V=
at start
>10.5V~
Drive
electronically-regulated direct-drive system, Dual EDS 500
Power input Motor at playing operation < 50 mW
Power consumption
at start
approx. 300 mA
at play
approx. 100 mA
Time from start to rated speed: approx. 2 s at 33 1/3 rpm
Platter non-magnetic, dynamically balanced,
detachable 1.1 kg, 270 mm diameter
Platter speed
33 1/3 and 45 rpm, electronically adjustable
Pitch control
Separate for both speeds, each adjustable by means of variable
resistor, with calibration scale; range of regulation: 10%
Speed control (monitoring) with illuminated stroboscope for
platter speeds 33 1/3 and 45 rpm, adjustable to 50 or 60 Hz
Sensitivity of the illuminated strobe for 0.1 % speed deviation.
6
division markings per minute at 50 Hz,
7.2 division markings per minute at 60 Hz.
Total wow and flutter
according to DIN 45 507
(German industrial Standard)
È
WRMS
+
Rumble (according to DIN 45 500)
Unweighted:
49 dB
Weighted:
73 dB
Tonearm
Torsion-resistant
tubular
aluminium
tonearm
in fourpoint
gimbal
Tonearm Bearing Friction (related to stylus tip)
vertical
<0.08 mN (0.008 g)
horizontal
<0.16 mN (0.016 g)
Stylus Pressure from 0-30 mN (0-3 g) infinitely variable, operable
from 5 mN (0.5 g) stylus pressure upwards.
Cartridges with 1/2 inch screw-type attachment. These can be
fitted with the special accessories no. 261 865 which can be ob-
tained from trade dealers.
Adjustable Overhang
5mm
Cartridge
see separate data sheet
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