Dual 1218 - Technical Data

Caution: Handle the motor pulley carefully.
A bent pulley causes rumble.
Stock numbers for motor pulleys:
For 60 Hz, 218 274,
for 50 Hz, 218 273.
Removing the turntable
To remove and replace the spring-clip that
secures the turntable, use the cone-shaped
accessory provided for the purpose. (Fig. 23 A,
removing the spring-ctip); Fig. 23 B, replacing
the spring-clip)
Fig. 23
Adjusting tonearm set-down position
With automatic start, the stylus descends
automatically into the outer groove of the
record, It is possible, due to peculiarities
in the mounting of a cartridge, that the
stylus may descend too far in or too far out
on the record,
In that case, set the record size selector
for a 12” record (30 em). Through the hole
next to the tonearm rest, you will see an
12
—
| v
É ->
17 30
Fig. 24
adjustment screw @, If the stylus descends too
far into the record, turn the screw slightly
to the left: if it descends too close to the edge
turn it slightly to the right.
Service
Allparts that require lubrication are adequately
coated with oil. Under normal conditions,
your Dual will function perfectly for years,
Do not oil any parts; special oils must be
used. Should your Dual ever require service,
either take it to your dealer or ask him for
the address of the nearest authorized Dual
service agency. Be sure that original Dual
replacement parts only are used. When ship-
ping your Dual unit, please pack it in the
original carton.
Technical data
Power supply:
alternating, 50 or 60 cycle
changeable by changing motor pulley
Power supply voltage:
110-125 and 220-240 V
Drive:
Shaded pole synchronuous motor, 4-pole,
with radial flexible suspension,
Power consumptio:
10 watts approx.
Current drain:
64 ma approx, at 220 V, 50 cycle
115 ma approx, at 117 V, 60 cycle
Turntabl
die-cast non-magnetic, 10 5/8", weighing 4 Ibs.
dynamically balanced
Turntable speeds:
33 1/3, 45 and 78 r.p.m,
Pitch control variation:
adjustment range of approx, 1
(6%) at all three turntable speeds
semitone
Speed accuracy deviation:
<+0,09 % in accordance to DIN 45 507
Rumblı
> 39 dB below signal level in accordance
with DIN 45 500
Weighted rumble:
> 59 dB below signal level in accordance
with DIN 45 500
Tonearm:
torsionally rigid aluminum tubular tonearm,
in 4-point gimbal suspension, with skeletal
head design
Maximum tracking error:
< 0.18 /cm
Tonearm bearing frictions:
(referred to stylus tip)
vertical less than 0,01 p
horizontal: less than 0,02 p
Cartridge holder:
removable, suitable for acceptance of cartrid-
ges having 1/2” mounting and possessing a
weight of 1 — 12 grams
Weight:
10.8 Ibs, without packing
Dimensions:
12 7/8” (+ 1 5/8 inch tonearm overhang)
x 10 3/4"