HP 400D Operating And Servicing Manual page 37

Vacuum tube voltmeter
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Sect.
V
Page
6
TABLE OF REPLACEABLE
PARTS
CIRCUIT
REF.
DESCRIPTION,
MFR.
*
&MFR.
DESIGNATION
@
sTocK
NO.
#
R63
R64
R65
R65
R67
R68
R69
R70
thru
R78
R79
R80,8l
R82
R83
R84
R85
cRl,2
F1
II
LI
MI
Resistor: fixed, cornposition,
100,000
ohrns, +lO%, LIZ
W
Resistor: fixed,
deposited carbon,
100,000
ohrns, +I%,
I
W
Resistor: fixed,
composition,
33
ohrns, +10%,
I
W
Resistor:
variable,
wirewound,
4
ohrns, t20%,
I
W
B*
NN*
B*
AT+
Same as
R9
Resistor: fixed,
composition,
l0
ohms, +10%,
I W
B*
Resistor: fixed,
composition,
4700
ohrns, *LjTo,
Il2W
Electrical
value adjusted
at
factory
B*
These
circuit
references not
assigned
Resistor: fixed,
cornposition,
24, 000
ohrns,
+5o/o, I
lZ
W
Electrical
value adjusted
at factory -
may not be
present
B+
Resistor: fixed,
composition,
2.
? megohrns,
tl0%, llZ
W
Electrical
value adjusted
at factory -
may
not
be
present
B*
Resistor: fixed,
cornposition,
270
ohrns,
*IOo/0,
l12
W
Electrical
value adjusted
at factory -
rnay
not
be
present
B*
Resistor: fixed,
cornposition,
470,000
ohms,
+LlTo,
LIZ
W
B*
Resistor: fixed,
cornposition,
270
ohrns, 110%,
I
W
Electrical
value adjusted
at
factory
B'r
Same
as
R83
Rectifier,
silicon
diode
special -hp-
design
HP*
Fuse, cartridge:
I
arnp, slow-blow
(ll5V)
Fuse, cartridge:
0. 5
arnp, slow-blow
(230V)
E*
o*
HP*
BF*
Larnp, incandescent:
6-8V,
.
l5'A'
Coil,
R.
F.:
t9ph
Meter
(400D
only)
l.
00
ma
f..
s.
Llo
accuracy
z3-100K
3l-100K
24-33
2I0-t
14
24-L0
23-4700
23-z4I+5
23-2.7M
23-270
23-470K
24-270
GIIIA
2Il-18
zLL
-20
2tL-47
608A-507
rtz-6
2
I
I
I
I
I
t
I
I
)
t
z
I
I
I
I
I
Parts Tahlett
:t
$ss
tt
List
of Manufacturers
Code
Letters For
#
Total quantity
used
in t}te
instrument.
Replaceable

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