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Your MR 73 FM/FM STEREO-AM
TUNER will give you many years of
pleasant and satisfactory performance.
If you have any questions concerning
the operation or maintenance of
this instrument, please contact:
CUSTOMER SERVICE
Mclntosh Laboratory Inc.
2 Chambers Street
Binghamton, New York 13903
Phone: 607-723-3512
Take Advantage of 3 years
of FREE Factory Service...
Fill in the Application NOW.
GUARANTEE ... 1
IF YOU'RE IN A HURRY ...2
INSTALLATION ... 3, 4
HOW TO CONNECT ... 5
BACK PANEL INFORMATION ... 6
FRONT PANEL INFORMATION ... 7, 8
LISTENING TO THE MR 77 ... 8
TECHNICAL DESCRIPTION ... 9, 10
PERFORMANCE LIMITS ... 11
PERFORMANCE CHARTS ... 12
BLOCK DIAGRAM ... 13
GUARANTEE
Mclntosh Laboratory Incorporated guarantees this
instrument to be capable of performance as adver-
tised. We also guarantee the mechanical and elec-
trical workmanship and components to be free of
defects for a period of 90 days from date of pur-
chase. II such defects occur, Mclntosh Laboratory or
THREE YEAR FACTORY
An application for a FREE THREE YEAR FAC-
TORY SERVICE CONTRACT is included with this
manual. The terms of the contract are:
For Three Years from date of purchase -
1. Mclntosh will provide all parts, materials and
labor needed to return the measured perform-
ance of the instrument to the original per-
formance limits free of any charge. The
SERVICE CONTRACT does not cover any
shipping costs to and from the authorized
service agency or the factory.
2. Any Mclntosh authorized service agency will
repair all Mclntosh instruments at normal
service rates. To receive the free service
under the terms of the SERVICE CONTRACT,
the SERVICE CONTRACT CERTIFICATE must
accompany the instrument when taken to the
service agency.
3. Always have service done by a Mclntosh
authorized service agency. If the instrument
is modified or damaged as a result of unau-
thorized repair the SERVICE CONTRACT will
be cancelled.
one of its authorized agencies will repair the defect
at no cost to the purchaser. This guarantee does
not extend to components damaged by improper use
nor does it extend to transportation to and from the
factory or service agency.
SERVICE CONTRACT
4. The SERVICE CONTRACT is issued to you as
the original purchaser. To protect you from
misrepresentation this contract cannot be
transferred to a second owner.
5. The SERVICE CONTRACT is given to pur-
chasers who live in the 50 United States or
Canada only.
6. For your protection Mclntosh selects its
dealers carefully. Only one dealer in ten
qualifies for a McIntosh franchise. To receive
the SERVICE CONTRACT your purchase must
be made from a Mclntosh franchised dealer.
7. Your completely filled in application for a
SERVICE CONTRACT must be postmarked
within 30 days of the date of purchase of
the instrument.
8. To receive the SERVICE CONTRACT all infor-
mation on the application must be filled in.
The SERVICE CONTRACT will be issued when
the completely filled in application is received
at Mclntosh Laboratory Incorporated in Bing-
hamton, New York. If the application is not
received at Mclntosh Laboratory, only the
service offered under the 90-day guarantee
will apply.
Copyright ©1970 By Mclntosh Laboratory Inc.
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CONTENTS
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If You're in a Hurry
MULTIPATH INDICATOR -
Fluctuating display indicates
multipath distortion. Rotate
antenna for minimum fluctuation.
FM TUNING -Tune FM until the
indicator is in the black area in
the center of the meter face.
STEREO INDICATOR -Lights
when station is transmitting
stereo pilot carrier for stereo
broadcasting.
SIGNAL STRENGTH -Indicates
relative signal strength.
MODE SELECTOR-Select from
AM broadcast, stereo FM
broadcast, with Automatic
Stereo/Mono switches or
mono FM.
MUTING - Eliminates the usual
noise between FM stations.
VOLUME/OFF -Turns the AC
power to the tuner on or off and
adjusts volume to desired level.
STEREO FILTER -Reduces noise
on weak FM stereo broadcasts.
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