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Service Manual
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Technical data
Measured values
Current
Line Voltage
Drive
Power consumption
Sterling Time
Power Consumption
Dual
506
Edition December 1979
typical values. Rumble and wow and flutter values obtained with test record.
AC 50 or 60 Hz, changeable by changing motor pul ley
110 — 125 V or 220 —240 V, changeable
Dual 8-pole synchronous motor: precision flat belt for flyvvheel drive
approx. 10 watts
(to each nominal speed) approx. 2 seconds at 33 1/3 rpm
at 220 V, 50 Hz: approx. 75 mA
at 117 V, 60 Hz: approx. 140 mA
Platter
Non-magnetic, detachable, 1.1 kg, 304 mm
Platter speeds
33 1/3 and 45 rpm
Pitch Control Variation
at both platter speeds.Adjustment range at 33 1/3 rpm approx. 1 semitone (6 %)
Speed control (monitoring)
with stroboscope for platter speeds 33 1/3 and 45 rpm, adjustable to 50 or 60 Hz.
Total Wow and Flutter
DIN
± 0.07 %
WRMS
± 0.04 %
Rumble
Unweighted
48 dB
(according to DIN 45 500)
Weighted
70 dB
Tonearm
Torsion-resistant tubular aluminum tonearm in fourpoint gimbal bearing
Tonearm Bearing Friction
vertical
0.07 mN
(0.007 g)
(related to stylus tip)
horizontal 0.15 mN (0.015 g)
Stylus Pressure
from 0 - 30 mN (0 - 3 g) infinitely variable with 1 mN (0- 1.5 g)
operable from 5 mN (0.5 g) stylus pressure up
Cartridges
with 1/2 inch screw-type attachment. These can be fitted with the special accessories
no. 262 186 which c,an be obtained from trade dealers. Adjustable overhang 5 mm.
Weight
approx. 4.1 kg
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