Operating instructions

6.
ldentificotion
Toble
of Ports
for
Rodio
Receiver
R-174/ARR-Continued
Ref
symbol
Name
of
part
and
description
Function of
part
Sisnal
Corps
stock
No-
c54
H5
oi,orc,o27
c25
c37
c39
c29, C30
c20
c26
c3, c10,
c19
c43
c31
C5, CII,
CLz,
cr4,
czl,
c22,
c23,
c28,
C32,
c33, C34,
c,41, c45,
c48, C49
BOLT,
machine:
SS;
#6-32;
.296" Lg;
thd
portion
'ì;"
lg;
head
.109"
thk
and
1/2"
dia
o/a;
shoulder
.281"
dia;
Emerson
Rad
f
SM-1222.
BUSIIING:
brass; female;
.406', l,g,
.949,,
OD,
.251,,
ID
and
72"
shoulder;
Emerson
Rad
#SM-1220.
CAM:
SS; mts
by two
B-48
NC-2
tap
holes
ya,,
d;
Emerson
Rad,f1\{A-1046.
CAPACITOR,
fixed:
ceramic
dielectric;
B
ppf
-+.8
ppf;
500 vdcw;
JAN
type
CC21CJ0B0D.
CAPACITOR,
fixedt
ceramic
dielectric;
7
ppf
-+.5
ppf
;
500 vdcw;
JAN
type
CC21CH0?0D.
CAPACITOR,
fixed:
ceramic
dielectr.ic;
5I
ppf
-+.íak)
500
vdcw;
JAN type
CC21SL510J.
CAPACITOR,
fixed:
electrolytic;
2b
af;
800 vdcw;
JAN type
CE41C250N.
CAPACITOR,
fixed:
electi'olytic;
1000
pf
;
1b
vdcw;
JAN
type
CE41C102E.
CAPACITOR,
fixed:
mica
dielectric;
100
ppf
-+l0lo;
500 vdcw;
JAN type
CM20C101K.
CAPACITOR,
fixed:
mica
dielectric;
1b0
ppf
-+|c/a;
500
vdcw;
JAN type
CM20C151J.
CAPACITOR,
fixed: mica
dielectric;
300
ppf
-+íc/o;
500
vdcw;
JAN type
CM20BB01J.
CAPACITOR,
fixed:
mica
dielectric;
470
ppf
+1017c
I
500
vdcw;
JAN type
CI\{20D471K.
CAPACITOR,
fixed:
mica
dielectric;
680
p.pf
-+5/e;
500
vdcw;
JAN
type
CM30D681J.
CAPACITOR,
fixed
:
paper
dielectric
;
1000
ppf
-+20cki
400 vdcw;
JAN type
CM20A102M
Mica-
mold
fiì39-110.
CAPACITOR,
flxed:
paper
dielectric;
10,000
ppf
-+20%;
120 vdcw;
JAN type
CN20E10BM.
94
AGO 3134
lB"uring
shaft for intermedi-
]
,Lzttt*
]
ate
sear
o17.
I
I
O7 and
O10: Through
panel
221409-285
bushings
for
antenna trim-
mer
shaft.
O27: Bearing for
band switeh
shaft through
panel,
Tuning
shaft cam
._-_. _
Bfo
output coupling
capaci-
tor.
Crystal calibrator
output cou-
pling
capacitor.
to Vt
glid
circuit
for
band 4.
Crystal
caliblator
grid
leak,-
Bf filter
V8 filament
a-f
bypass
Detector
i-f
filters,-
]
I
I
V3
oscillator control
grid
leak
I
Calibration oscillator tank
r-f
letuln,
C3:
V1
grid
coupling.
C10: V2
grid
coupling.
C19: Convertei' r-f
grid
cou-
pling.
Bfo harmonic
suppressor
Detector
to
a-f amplifiel'
con-
trol
grid
audio coupling.
C5: V1
plate
cilcuit decou-
pling.
CII: Y2 avc
filter.
ClZ: Y2
filament
a-f
bypass.
CI4:- Y2
plate
cii'cuit decou-
pling.
C21: Converter screen
giid
r-f
bypass.
C22: Y4 avc
filter.
C23t Y4 screen
grid
r-f by-
pass.
C28: V5
nlino
C32: V6
nlino
C33: V6
pass.
C34: V6
C41: Bfo
return,
C45:
Y7
plate
circuit decou-
plate
circuit
decou-
screen
grid
a-f by-
plate
a-f coupling.
tank center tap
r-f
filament
a-f bypass,
22t600-743
3D9003-35
3D9007-10
3D9051-14
3D825-131
3D81000-22
3K2010131
3K20r5r32
3K2030122
3Ii20171
12
3K3068142
3DA1-215
3DA10-380