Fig. 1. Radio Transmitter Bc-375-E, Schematic Diagram - GE BC-375-E Preliminary Instructions

TONE \
,
c
i• VOICE
0
s,
•
SWITCH 1141
807
801
Bog
B
1803
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804
p1
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821
82 2
814
0
3
L _
1109 1199
1110 O
1113
1117 1101
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1160 1109
1197A
a
1164 a
a.
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1109
1114
162
1107
1122
1119
MOD
r-
VT-4-G 1115
1108
1187
ANTENNA
SIMPLIFIED
CIRCUIT SWITCH
SCHEMATIC
Ill
er
0
POSITION *I "N"
LE:'0
A
„
0
POSITION * 2 "N"
0
POSITION * 3
"N
-
"r "
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41
POSITION *4 " N"
66
1183
1184
1179
a
T-4-C
1112
P.A.
M.0
VT-a
1161
MOD
VT-4-C
•--/
61 is e
L-
11
1
1167
ANTENNA INDUCTAFNCEI
TUNING "M "
1121
1116
1116
1116
1116
1134
1133
CW
1135
MOD
MICROPHONE CONNECTIONS
1 4 i1
cr,
KEY CONNECTIONS
7W
7, 0 v
r
114 9
.--•
la%
114 5
147
1193
114 6
ANTENNA
CIRCUIT
SWITCH
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ANT
CAPACITOR
TUNING
1170
S
0—
1129
TONE
V
1
0
.
1
4
7
AN
CW
ToV
I
CW
SA
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1142
Ow CW
1
54
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o.
1197C
168
SW2
CD-
0
1169
+1156
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1156
11191
115 0
1192
4
1148
RADIO
TRANSMITTER BC- 375-E
ANTENNA TUNING UNIT BC -306- A
DYNAMOTOR UNIT PE - 73- G
BROWN
YELLOW
GREEN
BLUE
RED
WHITE
ORANGE
BLACK
KEY
KEY
/1194
NIC. INPUT 011128--MOWN
MC.SIIMTCH OR KEY(T1P)---WMTE
SIDE TONE BLUE
KEY RELAY ARM
RED
KEY RELAY BACK—YELLOW
• 11010,811C.,OR KEY (SLEEVE)—GREEN
• 03NDONIC..OR KEY (SLEEVE)—BLACK
(ON-OK7 SWITCH (DYN. RELAY)
OPT 0014
255.
119 0
0
1126
1
1172 TEST KEY
1131
1127
1189
(IBS y
1128
SO-39 186
PL- 64
1198
ANT. INDUCTANCE
SWITCH " P'
0 ANT
LOAD "8 '
O LOAD '.11"
0 6N°
0 NEC
INTERLOCK OPERATED
BY TRANS. TUNING UNIT
V
TO AIRPLANE
JUNCTION BOX
TYPICAL TRANSMITTER TUNING UNIT TU - 8 -8
CW
TO PRIMARY POWER SUPPLY
28 VOLTS DC
Fig. 1. Radio Transmitter BC-375-E, Schematic Diagram
Fig. 1