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EASY
STYLUS
REPLACEMENT
STYLUS
REPLACEMENT
CAUTION: The position of the leads inside the pickup head shell
is extremely important in maintaining proper tracking force and
proper operation of the cartridge-head. assembly. The leads have
been positioned at the factory
for
optimum performance and the
leads should not be disturbed.
SAFETY
BUMPER
RECOMMENDED
PLAYING
POSITION
SPECIAL NOTE: The Dynetic stylus assembly used in these car-
tridges is the most critical component.
To
maintain the original
performance standards
of
your cartridge, be certaln that any re-
placement stylus you buy bears the following certification on the
package
:
“This Dynetic stylus is precision manufactured by
Shure Brothers, Inc.”
Avoid inferior imitations. They will seriously degrade the per-
formance of your cartridge. All genuine “Dynetic” styli are
manufictured by Shure Brothers, Inc.
LABORATORY TEST FINDINGS: (Note: The following stylus
test findings of the Shure N3D stylus are an example of the close
scrutiny Shure pays to all imitation Shure Dynetic Styli.) Shure
laboratory tests show that the imitation stylus assemblies labeled
as replacements for the Shure Model N3D Stylus Assembly vary
drasticallv in imoortant Derformance characteristics.
For
examole.
the compiiance Taried frbm a 1,ow 0.9 to
a
high of 11.5, requifing
9.0
grams to track a record with
a
low compliance stylus and
2
grams with a high compliance stylus. The high compliance‘ stylus
retracted at
4
grams needle force, allowing the cartridge case to
drag on the record surface. therebv beccminz inooerative. Re-
sponse
at
high frequency (relative
to
the lkc level) ranged from
a
5.5db peak to
a
drop of 7.5db. Separation varied from ”good”
(27db) to “poor” (16.5db) at ikc. These figures reveal that there
is very little consistency in performance characteristic of the
imitation Dynetic Styli.
In each of the categories shown above.
the results ranged from
good to poor.
As
a
matter of fact, only
10%
of the samples met the
Shure performance standards for the Shure N3D Stereo Dynetic
Stylus. In addition to
pur
teqt findings, our Service Department
records show that an increasing number of Dynetic Phono Car-
tridges are being returned because of poor performance-and our
examination has disclosed that most of these returned cartridges
are using imitation Dynetic Styli.
CONCLUSION
:
Obviously, if
any
imitation Dynetic Stylus is used,
we cannot guarantee that the performance of Shure Dynetic
cartridges will meet the published Shure specifications. Accept no
substitute.
CMaran*@@
The Stereo Dynetic Head Assemblies and Stereo Dynetic Styli
are guaranteed to be free from electrical and mechanical defects
for one year from the date of shipment from the factory, provided
all instructions are com lied with fully. The Guarantee does not
cover stylus wear, nor
Joe,
it
cover damage to the stylus assem-
bly from abuse
or
mishandling.
service Protec)icn-AccidentaI
Damage
Shure Dynetic Styli will withstand long, continued usage. How-
ever, if stylus assembly should be damaged due to accidental
mishandling, and diamond tip is still intact, return the stylus
assembly to the factory for servicing and testing to original per-
formance standards at
a
nominal service charge of
$6.00.
This
price
is
only applicable when the customer returns the stylus
direct
to
the factory
in
Evanston.
In
Canada, send
to
Canadian
address shown below. (Prices proportionately higher in Canada.)
Please enclose a check
for
the service charge with the returned
assembly.
Return Stylus to: In Canada return stylus to
:
Shure Brothers, Inc.
A.
C. Simmonds and Sons, Ltd.
222
IIartrey Avenue 285 Yorkland Boulevard
Evanston, Illinois 60204 Acincourt. Ontario
U.S.A. Canada
PATENT NOTICE: Manufactured under U.S. Patents 3,055,988,
3,077,521 and 3,077,522. Other patents pending.
Copyright 1968 Shure Brothers, Inc. Printed in U.S.A.
27A490 (3-68)