Shure Hi-TRACK M91 Series User Manual

222 HARTREY
A V E . .
EVANSTON. IL. 60204
U.S.A.
--
AREA CODE 312j328.9000 CABLE: SWUREMICRO
MODEL M91G
DATA SHEET
m-TRACK
STEREO DYNETIC@
EASY-MOUNT
P H O N O G R A P H CARTRIDGE
SPECIFICATIONS
M 9 1 , M 9 2 A N D M 9 3 CARTRIDGE SERIES
N91, N92 A N D N 9 3 STYLI SERIES
TRACKABILITY:
M91E a n d M91G a t 1 g r a m s t v l u s force
-
400 Hz.
-
20 crn/sec.
1,000 Hz.
-
28 cm/sec.
10,000 Hz.
-
18 cm/sec.
M92E a t 1 g r a m s t y l u s force
400 Hz.
-
18 cm/sec.
1,000 Hz.
-
26 cm/sec.
10,000 Hz.
-
15 cm/sec.
M93E a t 2 g r a m s t y l u s force
*
T h e N75-3 s t y l u s m a y be used to reproduce t h e s t a n d a r d 78
r p m records. I n t h i s case, t h e amplifier should be s e t t o "Mon-
aural" o r
"A+
B."
Stylus
Color
Grip
-
Black
Yellow
Light
Green
Gray
Green
- - -
Output Voltage
(1,000
Hz.
at
5
cm/sec.)
5 0 millivolts
6.2 millivolts
6.2 millivolts
5.0 millivolts
-- -
6.2 millivolts
Model
Number
M91E
M92E
M93E
M91G
400 Hz.
-
18 cm/sec.
1,000 Hz.
-
25 cm/sec.
10,000 Hz.
-
13 cm/sec.
. .
Tracking
(Grams)
.?/,
to 1?h
"k
to
l ? , 2
I
1% to 3
z ?
to 1?h
-
~.
-
1% t o 3
Diamond Stylus
Replacement
N91E Elliptical Sidc
Contact R a d ~ u s
:
, 0 0 0 2 ~ (.005 m m )
F r o n t a l R a d l u s
:
.0007" (.018 m m )
N92E Elliptical Side
Contact Radius :
.0002" (.005 m m )
F r o n t a l R a d l u s :
.0007" (.018 m m )
N93E Elliptical Side
Contact R a d i u s
:
.00041f (.010 m m )
F r o n t a l R a d i u s
:
.0007" (.018 m m )
N91G R a d i u s
:
.0006" (.015 m m )
N75-3, *Radius
:
.0025" (.064 m m )
( H i g h e r s t y l u s foroes within specified range improve trackahility.)
FREQUENCY RESPONSE: F r o m 20 t o 20,000 Hz.
CHANNEL SEPARATION: 25
db
a t 1,000 H z .
RECOMMENDED LOAD IMPEDANCE: 47,000 ohms p e r channel
INDUCTANCE: 720 millihenries
D.C. RESISTANCE: 630 ohms.
MOUNTING: S t a n d a r d f/z" (12.7 m m ) mounting center using new
"Easy-Mount" snap-in bracket.
W E I G H T : 5 grams.
TERMINALS: 4 terminals.
GENERAL: T h e M91, M92 a n d M93 Series of H i g h Trackability
Dynetic phonograph cartridges h a s been developed f o r use w i t h
all high fidelity amplifiers having magnetic a n d constant velocity
inputs.
MOUNTING: T h e bracket for each cartridge h a s s t a n d a r d
'/z"
mounting centers. H a r d w a r e is provided for mounting purposes
( T h e brass screws have British threads.)
1. Remove s t y l u s g u a r d a n d s t y l u s from cartridge. (See p a r a -
g r a p h on s t y l u s replacenlent.)
2. Remove cartridge from "Easy-Mount" snap-in bracket. (See
F i g u r e
1)
3. S t a r t mounting screws into tone arrn head o r plug-in shell.
4. Slip "Easy-Mount" bracket under heads of mounting screws
a n d tighten screws securely.
5 .
Connect leads to phono-cartridge. Note color code f o r proper.
connection
t o terminal "L." "R."
"LG"
a n d "RG" a s In-
dicated in tone-arm instruction rnanual.
6. I n s e r t cartridge into "Easy-Mount" snap-in bracket. (Set.
F i g u r e
11
SHIELD OF CARTRIDGE MUST BE PLACED
UNDER T A B OF BRACKET BEFORE LOCKING
CARTRIDGE BUhW IN
BUMP IN FRONT HOLE OF BRACKET
MOLE
OF
0 ° F
LLIFT
HERE WITH THUMBNAIL FOR REMOVAL
OF CARTRIDGE FROM BRACKET
CARTRIDGE AND BRACKET ASSEMBLY
FIGURE I