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DATA SHEET
135
No.
transmission of high frequency sounds, contribu-
ting greatly toward improved intelligibility
without overloading the power stage of the amp-
lifier.
SPECIFICATIONS
2.36 millivolts r.m.s. per
Voltage
sensitivity:
bar at the end of a 25-
foot cable across 1 to 5
megohms at 400 cycles. This is equivalent to
32.5 db below 1 volt for a 10 bar signal at the
end of a 7 foot cable.
Internal Output
Equivalent to a 1,500 mic-
Impedance:
ro-microfarad
Recommended
Load
Impedance:
1/2 to 5 megohms.
Model . . . . . . . . .
Height,
Overall (a)*. .
Height, Case
(h)*. .
Width
(b)*. .
Thickness
(c)*. .
Finish . . . . . . . . .
Net Weight. . . . . . .
Shipping Weight.. . . .
Code Word . . . . . . .
* See Fig. C.
condenser.
750B
4-7/16"
GUARANTEE:
3-13/16"
2-3/4"
date of shipment from the factory, provided all
1-7/8"
instructions are complied with fully. In case of
Iridescent Gray
damage, return the microphone to the factory for
repairs.
14 ounces
phone case is opened
1 lb. 3 ounces
LICENSE NOTICE:
RUSEL
Fig. B: Frequency Response 750B
Fig. C. Overall Dimensions 750B microphone, and
Mounting Bracket (Hanger A Included as Standard
Equipment, Stud B, on special order).
Each microphone is guaranteed to be
free from electrical and mechanical
defects for a period of one year from
Our guarantee is voided if the micro-
Shure patents pending. Licensed
under patents of the Brush De-
velopment
Company.
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