Dual 1019 - Tonearm Counterbalance; Direct-Dial Stylus Force Adjust

PRECISION OfRGk
460 ENGINEERING FEATURES
DYNAMICALLY
BALANCED
TONEARM
WITH
DIRECT-DIAL
STYLUS FORCE ADJUST
Flawless Tracking as Low as 1 Gram
AM all so-called “dynamically balanced” tonearm
actually measure up to that important qualifics
lion, as dynamic balance requires that the tone
arm's integral mass remain balanced al all times
when trek ing,
Phe Dual 1019
Maintains its true
dynnmic balance bn
all planes hecatise
tracking force ia ap-
plied af the pivat
point by a long, mul
tiple-coiled main
spring (Fig. SA). The
weight of the tone
arm iteelf remain
in comlant balance.
Friction-Free Pivots
The pivet of the Dual 1019's tonearm is virtually
friction-free (less than 0.! gram) in both the vertical
afd henpontal planes, Por ite vertical movement,
the tonearm i pivoled on two hardened sect
points, cach supported by precision ball bearings
(Fig. 5B) In the horivonial movement, dowble ball
bearing units are used. (Fig. MC)
Direct-Dial Stylus Force
[racking force is applied with the same onder of
precision as used in balancing (he tonearm. The
continuously variable adjustment (from 0 gram
Up) is aleo essential with ulira-lightweight track
ing. The readings on the dial (Fig. 6) are accurate
io within 0.1 gram.
Elastically Damped Counterbalance with
Rapid and Fine Adjust
The counterbalance i6 slipped onto the rear of the
tonearm and positioned on its shaft for raped yup
proximate balancing for the weight of the car-
(ridge, then locked with the set screw, For atmolute
precision in balancing, casential in ultra-lightweight
tracking, the counterbalance is then turned on its
fine threads, (Fig. 7)
Duals precision
craftsmanship can
be appreciated in
the cutaway illuitra-
tion of the counter-
balance, Elastic
damping (Fig. BA)
climinates any
shock of VWibration
from the counterbalance being transmitted to the
toncarm itself, Nylon braking (Fig. 8B) applice
pressure on the shaft, allowing for conmtinuowily
viriable fine-thread adjustment without slippage