RCA 77-DX Instructions Manual page 3

BROADCAST AUDIO
EQUIPMENT
INSTRUCTIONS
FOR
Polydirectional
Microphone
Type 77-
DX
MI-
4045
-F
and
MI-
11006
-C
RADIO CORPORATION
OF
AMERICA
ENGINEERING PRODUCTS DEPARTMENT, CAMDEN,
N.
J.
P
r
i
n
t
e d
i
n L. S. A.
5105-576