GENERAL RADIO COMPANY 1608-A Operating Instructions Manual page 45

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204FR-205FR
210FR, 211FR a 212FR}
r l. . . .- -..... --~
ALSO CONNECTED
51
AT 215FR
WH
VT
Figure 5-10. Simplified schematic diagram
showing bridge in various positions of
FULL SCALE RANGE switch (R s
bridge).
312R
52
303R
40lR
53
403R
BL
52
30lR
52,308R
52,305R
52
403R
52
AT" 51
GN,OR
SHIELDED
CAPACITOR
DECADE
S4,S5
' -
..... C5 TO CI2
WH
502R
512R
WH-RD-BL-BK
~~
512F
CCW
R2
VERNIER
CI~
52
\"""" 302 F
52,307R
312R
CCW
RI CENTADE
412F
53
402F
WH
BL
BR
BK
504R
52
504F
506F
511F
52
50lFR
S2 (BRIDGE SELECTOR): R
s
S3 (GENERATOR SELECTOR): INT DC
504RWH_YE_BK
505FR
51
52
503F
BK
53,505F
AT#50
51.
5 11R 516R
CHASSIS GROUND
~
AT #50 BRIDGE GROUND
504R
513R
51
502R
507R
R401
R403
WH
YE
OR
0400
CW 0401
53
o
WH
JI41GY 311F
312F
B
I
GN
L
_
53.309F
o
JI5 C
'WH-GY-RD
153,308R
I
I
I
I
I
I
I
I
I
I
I
I
I
I
R400
I
________ .J
DOTTED CONNECTIONS TO R401
a
R400 ARE MADE ONLY
WHEN S3 SWITCH IS HALF WAY BETWEEN OFF AND INT DC
WH-GY-BL
51
512F-515F-5!7F
WH-YE -BL
503F
50 IF
510R
52
50eR
51
505F
52
507F
509FR
W~H~-V~T~-~B.::.K_"f-4I""'WH
_OR - GY
50eF
514F
WH-VT-RD
WH-VT-BL
WH-OR-GN
Ov
AT .. 18
+350v AT
flI5
+35v AT
1119
+3.5v AT ..
24
WH
OR
VT
40

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