Dual 622 Service Manual

Service
Manual
Technical Data
Currant
Line voltage
Drive
Power
input
Power consumption
Time from start to
rated speed
Platter
Platter speed
Pitch control
Speed
control
(monitoring)
Sensitivity of
the illuminated strobe
(for 0.1 %
speed
deviation)
Total
wow and
flutter
(according to DIN
45507)
Rumble
(according to
DIN
45500)
Tonearm
Effective
length of tonearm
Offset angle
Tangential tracking
error
Tonearm
bearing friction
(related to
stylus tip)
Stylus
pressure
Cartridges
Weight
Dual
622
Edition
January 1980
AC 50 to 60
Hz
110 to
125V,
220t0
240V
electronically-controlled
direct-drive system, Dual EDS 500
Motor at playing
operation approximately 2 watts <50
mW
220 V 50 Hz:
at start 35 mA
110 V60 Hz: at Start 65 mA
at play 15 mA at play
approximately 25 mA
2- 2.5s at 33 1/3 rpm
non-magnetic, 1.4 kg, 304 mm diameter
33 1/3 and 45 rpm, electronically adjustable
Separate for both speeds,
each adjustable by means of
variable resistor, with
calibration scale;
range of regulation: 10%
with illuminated
stroboscope for
platter speeds 33 1/3 and 45
rpm, adjustable to 50
or 60 Hz
6 division markings per
minute at 50 Hz,
7.2 division markings per minute at 60
Hz,
(German Industry Standard) ±
0.05 %
WRMS ±
0.03
%
Unweighted: 50 dB
Weighted:
75
dB
Torsionally rigid
tubular aluminum
tonearm in low-friction
four-point gimbal
suspension
221 mm
24 0 4'
0.16
0 /cm
vertical <
0.07 mN
(0.007 g)
horizontal <
0.15 mN
(0.0159)
from 0 to 30
mN (0 to 3 g)
infinitely variable with 1
mN- (1/109)
calibrations from 0 to 15 mN
(0 to
1.59)
operable from
2.5
mN (0.259)
stylus pressure up.
with 1/2 inch
screw-type
attachment. These can be fitted
with the special
accessories no. 262 186
which
can be obteined from trade dealers.
ca. 5.4 kg Dimensions and
Cutout Required refer to
Installation I nstructions,.
Download from www.dual.de
Not for commerical use

Dual 622 Specifications

General

Brand	Dual
Model	622
Category	Speakers
Language	English