Operating instructions

slmbol
o29, O35
thru
O39
o23
E2
E1
x99
x9
498
o2l, o28,
O30
thru
o34
o48,
o49
43, A9
o98
H2,H.L4
E10
811
II8
K1
R23
98
6.
ldentificotion
Toble
of Ports
for
Rodio
Receiver
R-|74/URR-Continued
KNOB:
round;
aluminum;
1*"
dia
Emerson
Rad
fKN-1004.
KNOB:
round;
aluminum;
11/2"
dia
luminous
markings;
Emerson
Rad
x
z.us
"
thk o/a;
x
3/e"
thk olai
#KN-1005.
LAMP,
glow:
105-125
v,
7/n
w;
65 v ac
striking
voltage;
90
v
dc
striking voltage;
double
cont
bayonet,
candelabra
base;
cylindrical
bulb;
GE
#NE-48.
LAMP, incandescent:
2 v,
.12
w, .06 amp;
ininia-
ture bayonet
base;
1'È" max
o/a
h;
GE
#
g,
LAMPHOLDER:
accom
miniature
bayonet
base
iamp; metal
shell; 1i?" 19 x
ín"
dia
ola;1
solder
lug
term.
shell is
ground
term.;
Croname
Sg5-
P-69810-4.
LAMPHOLDER:
double
cont
bayonet
candelabra
indexing;
lg/a"
1g x
Ìà"
dia o/a;
Millen
#33992.
LENS,
light,: nonfocusing;
clear lucite;
1_'/a" max
thk; mtd
by
two
#4-40
NC-2 holes
,ir"
d: ls7*"
1g
x l1/a"
wd x
Te"
d; Croname
#79-P-69S4S.
NUT,
plain
cap:
brass; wrench
type drive,
/s";
#3/e-32
Lhd;
a6"
wd., .427" h; Emerson
Rad
#AS-1209.
NUT,
self-sealing: rveldine1,
#8-32
thd;
;!"
d
x
'{c"
h
ola
x
3/e"
wd; Emerson
Rad
#NT-9032.
PLATE,
electrical
grounding: p/o
chassis
of Radio
Set
AN/GRR-5;
assem c/o
plate
11'/ptg holes
and
spring
riveted
to
plate;
rectangular
shape,
flat;
2.062" 1g x
3/+"
wd x
.093" thk;
Emerson
Rad
fA5-1095.
PLATE,
lock: ss; zii" le x 1.11"
wd x .094"
thk
o/a; Emerson
Rad
#MA-1048.
PLATE,
mounting: rectangular;
Emerson
Rad
#MS-1162.
POST, binding:
i!"
above
mtg
surface, .515" OD;
mtg
stud 1"
l.e,.164"
dia;32
thd
per
in.; Emer-
son Rad
#LU-1019.
POST, binding:
.ìi"
above mtg
surface,
.515" OD
of
post;
mtg
stud
s/a"
19,,L64"
dia;32
thd
per
in.; Emerson
Rad
#LU-1020.
PULLER, tube: 27a" lg x 1"
wd; Emelson
Rad
#AC-1002.
RELAY, solenoid: normally closed,
single break,
dc
voltage, 10 ma
dc; l
winding; 125 ohms, 11
to
15
v dc; 2r/2" lg x l:it"
wd x 1.8ì"
h o/a; Clare
CP
#G.
RESISTOR, fixed: comp; 130
ohms
-+!}c/c;
2 wi
JAN type RC42BE131K.
RESISTOR,
fixed:
comp; 3,900
ohms
-+I}/ci
1/z
wi
JAN type RC20BF392K.
O48:
Seal
post.
O49:
Seal
post.
Guide,
position,
and
ground
chassis
within case,
Locks
tuning mechanism
Guides and
positions
chassis
within case.
Provides means
of attaching
antenna
wire
(marked
A).
Provides means
of attaching
ground
wire
(marked
G).
Tool for extracting
miniature
tube
from
sockets.
Receiver
disabling
relay ..
K1 operating
coil
voltage-
dropping resistor
when 24 v
d-c supply is
used.
V8 screen
grid
voltage drop-
ping.
Name
of
part
and description
Function
of
part
Rotating
controls
mounted
on
panel.
Fine
tuning
knob
for.
tuning
receiver
marked
PULL
OUT BEFORE
PRESET
TUNING.
Protects
antenna
coils
Illuminates
dial scale
Dial light
socket
Socket for
E2
Directs
light
to
tuning dial
Nfake
watertight
shaft
and
panel
seal assembly.
nut
for antenna
nut
for
ground
Signal
Corps
stock
No.
225822-660
225822-662
225889-3
22597r.L
225882-87
225885-31.
226125-t42
6L3677-32.4
6L3658-32-6.6
227090.179
227090.118
6L58006-6
3274I-43.7
3274I-43.2
6R7443-4
227599L-346
3RC42BE131K
3RC2OBF392K
AGO
3134