Advertisement
Model 4440B
5-1.
5-2.
replacement
parts.
INTRODUC TION
SECTION
V
REPLACEABLE
PARTS
This section contains information for
ordering
Table 5-2 lists parts in alpha-
numerical
order
of their reference
designators
and
indicates the description (see Table 5-1 for abbrevi-
ations
used)
and
HP
Part
number
of
each
part,
Section
V
Paragraphs
5-1 to 5-6
5-4.
ORDERING
INFORMATION
5-5.
together with any applicable notes.
9-6;
5-8.
Miscellaneous
parts associated
with each
as-
b.
sembly are listed at the end of each assembly listing.
Others are listed at the end of Table 5-2.
=
d.
To obtain replacement parts, address order
or
inquiry to your
local
Hewlett-Packard
Field
Office
(see
lists
at rear
of
this
manual
for
addresses
Ju
Identify parts by their Hewlett- Packard part numbers.
To obtain a part that is not listed,
include:
Instrument model number.
Instrument serial number.
Description of the part.
Function and location of the part.
Table 5-1.
List of Reference Designators and Abbreviations
—,
REFERENCE DESIGNATORS
A
= assembly
E
= misc electronic part
MP
mechanical part
TP
= test point
B
= motor
F
= fuse
P
v
= vacuum, tube, neon
BT
= battery
FL
= filter
Q
bulb, photocell, etc.
€
= capacitor
Ic
= Integrated circuit
R
VR
= voltage regulator
cP
= coupler
1
= jack
RT
w
= cable
CR
= diode
K
= relay
s
x
= socket
DL
+ delay line
L
= inductor
T
Y
7 crystal
DS
= device signaling (lamp!
M
= meter
TB
lerminal board
ABBREVIATIONS
A
= amperes
H
= henries
NPN
= negative-positive-
RWY
- reverse working
A.F.C.
- automatic frequency control
HEX
= hexagonal
negative
voltage
AMPL
= amplifier
HG
= mercury
NRFR
= not recommended for
B.F.O.
= beat frequency oscillator
BR
hour ie
Held replacement
BEGU
" = beryllium copper
Hz
= hertz
NSR
= not separately
S-B
= slow-blow
BH
binder head
IF
= intermediate freq.
fepliceable;
Er
er
5
= selemum
BP
> bandpass
IMPG
= impregnated
suf
ola
BRS
brass
INCD
= incandescent
OBD
rder by description
SEMINE
sca
BWO
-backward wave oscillator
INCL
= include(s!
OH
oval head
s
Say
*
А
INS
= insulation(ed)
Ox
= oxide
E
š
CCW
= counter-clockwise
nr
ee
SIL
= silver
CER
= ceramic
5
5
SL
- shde
СМО
= cabinet mount only
k
= kilo = 1000
>
ak
SPG
= spring
COEF
= coefficient
CAE
i
SPL
- special
COM
= common
Ін
Send
гс
printed нан
SST
- stainless steel
COMP
= composition
Tis
= horar taper
р
р > Шу
SR
< split ring
3
:
LK WASH
- lock washer
PH BRZ = phosphor bronze
COMPL - complete
STL
steel
P
ee
LOG
= logarithmic taper
PHL
Phillips
к
cadum Di
LPF
> low pass filter
РУ
7 peak inverse voltage
Gh
КРСТО
CRT
cathode-ray tube
"
занд
bate
one Net
TD
- üme delay
ce
ia
M
= mee - 10%
P/O
part of
age
E
DEPC
- deposited carbon
MET FLM - metal film
POLY
olvstyrene
EN
ы
ыш
DR
= drive
MET OX
- metallic oxide
PORC
orcelam
TOL
are
MFR
> manufacturer
Pos
= position(s)
ELECT - electrolytic
MINNS
CANT
ФОР
О
M
TRIM
= trimmer
ENCAP - encapsulated
moe
as
=
a
TWT
= traveling wave tube
EXT
: external
9
u
54)
par
MTG
mounting
PT
pot
.
эр
Е
farads
е
MY
= "mylar"
PWY
= peak working voltage
f
femto - 10!
4
10
VAR
2 variable
FH
- flat head
х
= палан
10
5
VDCW
= de working volts
1
Š
Nc
= normally closed
FILE
= filhster head
Ж
E
e
M
exe
sea
NE
- neon
RECT
recuñer
Й
wi
5
NI PL
= nickel plate
RF
radio frequency
w
= watts
G
mga = 10
хо
= normally open
RE
'ound head or
wiv
= worlong inverse
GE
germanium
NPO
= negative positive zero
right hand
voltage
GL
class
izero temperature
RMO
- rack
mount only
ww
= wirewound
GRD
= groundied
coefficient
RMS
= root-mean square
wo
= without
0001-9700
4440B-1
5-1
Advertisement
