Advertisement
and their detailed location is largely determined by their exact
use, the constructional details of the stage and other conditions
so numerous as to preclude any definite statement of rules or
methods of applications. e uni-directional feature of the mi-
crophones may be utilized to great advantage in eliminating un-
desirable noise emanating from the audience area. It is also to
be noted that, because of the wide pick-up angle of the uni-di-
rectional microphone, fewer units of this type than of any other
will be required for proper coverage.
8. Operation.—In general, the microphone will operate sat-
isfactorily and require very little attention. It should give the
normal output listed in Section 3.
e microphone may be suspended or it may be mounted on
a program or floor stand. is stand is adjustable as to height.
e center of the uni-directional microphone may be located
at any height from 59 to 84 inches above the floor. In order to
raise or lower the stand, the vertical column clamping screw
should first be loosened. If it is desired to raise the microphone,
all that is necessary is to lift it to the desired point and there it
will lock itself automatically. Usually, it will remain fixed at this
9. List of Parts and Accessories.—
Description
Uni-Directional Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77-A
Program Stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AZ-4090
Suspension Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UP-4212-A
Stand Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Microphone Screen Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Swivel Clamping Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer (used under Swivel Clamping Nut) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Microphone Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Microphone Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannon Type P3-CG-12
Female Cord Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannon Type P3-CG-11
Flush Type Wall Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannon Type P3-13
Surface Type Wall Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannon Type P3-17
Flush Type Wall Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannon Type P3-35
*Length of cable must be specified when ordering.
position unless there is vibration or the microphone and stand
are moved around. is moving may cause the stand to slide
slowly downward. the clamping screw is provided in order to
prevent this. However, if the microphone does not tend to creep,
it is not necessary to use the clamping screw. When it is desired
to lower the microphone stand, the clamping screw should first
be loosened, then the inner tube of the microphone stand
should be raised slightly while pressing the sliding column latch
which projects at the side of the locking device. is will release
the lock and allow the microphone to be lowered to the desired
position, at which point the latch should be released and the
stand will automatically lock itself. en the clamping screw
may be tightened if desired.
It is not recommended that the customer attempt to repair the
microphone, but, rather, that it be returned to the RCA MANU-
FACTURING COMPANY, INC., for repair. is may be done by
writing to the RCA Manufacturing Company, Inc., for a "RE-
TURNED APPARATUS" tag and "REPORT BLANK." Before
doing this, however, make absolutely certain that the trouble is
in the microphone and not elsewhere in the circuit.
Figure 8—Plugs and Receptacles
Type
Stock No.
MI-4040
MI-4056
MI-4071-A
16857
16856
16478
16827
MI-62*
MI-4630
MI-4620
MI-4622
MI-4621
MI-4625
Advertisement
