Dual 1226 User Manual

Edition June 1974
Dual 1226
Service Manual
Technical data
Current type
Line voltage
Drive
Power consumption
Current requirements
Platter
Platter speeds
Pitch control
Wow and flutter
Signal-to-noise ratio
Tonearm
Tonearm bearing frictions
Pick-up head
(cartridge holder)
Stylus pressure
Pick-up cartridge
Weight
Dimensions and mounting
cutouts
AC 50 or 60 cycle, with appropriate motor pulleys
110/130 V and 220/240 selector
Four-pole Dual asynchronous motor
< 10 Watt
approx, 64 mA at 220 V 50 cycle, approx. 115 mA at 110 V 60 cycle
non-magnetic 1,8 kg (4 Ig) 270 mm (10.5 in,) diameter
33 1/3 and 45 rpm, automatic tonearm setdown coupled to speed selector
Adjustment of approx. 1 semi-tone (6 %) at both platter speeds
< £0.12%
Rumble signal-to-noise ratio > 57 dB
Rumble
unweighted
signal-to-noise
ratio
>
38
dB
in
accordance
with
DIN
45
500
Torsionally-rigid
tubular
aluminum
arm
with
vertical
and
horizontal
pivot
mounting
(referred to stylus top)
vertical: less than 0,01 gram horizontal: less than 0.04 gram
Removable,
suitable
for
acceptance
of
all
cartridges
having
1/2’’
mounting
and
a
dead-
weight
of 2 -
10
grams
(including
mounting
fixtures)
Continuously-adjustable from 0 - 8 p, reliable as from 0.5 p stylus pressure
See separate data sheet
approx. 9.2 Ib
see installation instructions
Dual Gebruder Steidinger - 7742 St. Georgen/Schwarzwald

Dual 1226 Specifications

General

Drive Type	Idler wheel
Speeds	33 1/3, 45, 78 RPM
Weight	6.5 kg
Tonearm Type	Tubular
Cartridge Compatibility	1/2 inch mount
Automatic Operation	Semi-automatic
Wow and Flutter	< 0.15%