Dual 1211 Service Manual

Page 1

ua

Edition May 1971

Technical data

Line erQUOZCy:
Line voltage:

:2uar coheomstio':
Current requirements:

Turntaule apeeoa:
Speed adjustment:
Turntable:

wow and Flutter:
Rumblfi:
5;;nal-to-nozee ratio:
Tanearmx

Cartridge holder:
weight:

Dimensions and mounting
cutouts:

Dual 1211
Service Manual

alternating, 50 or 60 cycle, uith approprlate motor oulleye

selector For 113 or 220 volts

2-pole Dual single-phase induction motor or a-oole asynchron2ue m:tor
with redielelaatic auapenalon

18 watts approximately at 220 U. SD cycle

50 ma. maximum at 228 V. 50 cycle

115 me. maximum at 117 V, 50 cycle

33 1/3. as and 7a r.p.m.

adjustment of 1 aemitone (6 S) at all three turntable speeds

ueight 3.2 lbs.. die 10 5/6"

lean than-(z. 0.17 5

less than 35 dB below signal level} in accordance with

less than 55 dB belou signal level DIN 45 53

torezonally rigid, tubular natal arm uitn vertical needle bearznge,
horizontal ball bearings. Min. etylua force: 3 p

removable. suitable for acceptance of cartridges having 1/2" mounting
and possessing e ualgnt of 1 - 8 grama

9.7 lbs. ulthout packing

sea installation instructions

Dual Gebrflder Steldlnger - 7742 St. Georgen/Schwarzwald

Page 2

Fig.1 Tonearm hookup schematic

nghl channel leII channel

a) with miniature 5-pln plug
Ionearm Iunction board

with muting switch \ channel I
__________________ redlead
I"
I
: l channel 2
I l thIe «no
I
I I
II : b) with phono plug
I I n
I I I . :
I I : red ' I I ' yellow
I I I I I I I
I I I
I- ____________________ I.._.I
' I
' l
' I
' I
' I
I I
I I Q] 02
channel 1 I | channel 2
red I ' wmle c) with banana plugs
| I channel I red
I : channel 2 yellow
: : common black
I I ground green
QII .02
L
r" - -- - - - ,-
}- mug In head
J sprung contacts between
I R 9 a g L I plug-In carlndge head
_ . r-- --" and lonearm
- I
plug m head WIth cartrIdge __L_.: I I
I
I ' v I
red whllv
I
green I - - blue
I
I
I
mu-metal heusmg of carIndge-H
phmmgrap
record "109! Slde o! groove 0 Q ontm SIdo nt gmuw:
- IelI channel 2 I nghr chanm-I