HP 8903B - Page 12

Model 8903B Replaceable Parts
Table 6-1. Reference Designations
A ................ assembly
AT
...... attenuator; isolator;
B
............... fan; motor
termination
BT ................. battery
C ................ capacitor
CP
................ coupler
CR ............ diode; diode
DC ....... directional coupler
thyristor; varactor
DL .............. delay line
DS ............ annunciator;
signaling device
(audible or visual);
lamp: LED
REFERENCE DESIGNATIONS
E ............ miscellaneous
electrical part
F
.................... fuse
FL
................... filter
H
................ hardware
HY
............... circulator
J ....... electrical connector
(stationary portion);
jack
K ................... relay
L ............. coil; inductor
M .................. meter
MP
.......... miscellaneous
mechanical part
P ....... electrical connector
(movable portion):
PM
triode thyristor; FET
0 .......... transistor; SCR;
R ................. resistor
RT
.............. thermistor
S .................. switch
T
.............. transformer
TB
.......... terminal board
TC
........... thermocouple
TP
.............. test point
U ......... integrated circuit;
microcircuit
V
............ electron tube
VR ........ voltage regulator;
W ....... cable; transmission
X .................. socket
Y ........ crystal unit (piezo-
2 ....... tuned cavity; tuned
breakdown diode
path; wire
electric or quartz)
circuit
Table 6-2. Abbreviations (1 of 2)
A ................. ampere
... alternating current
......... accessory
ADJ
............ adjustment
AID
........ analog-to-digital
control
control
AL .............. aluminum
ALC
......... automatic level
AM .... amplitude modulation
AMPL
............. amplifier
APC
....... automatic phase
ASSY ............ assembly
avg
............... average
... American wire
control
decimal
BD ................. board
BECU
...... beryllium copper
BFO
........ beat frequency
BH binder head
BKDN
.......... breakdown
BP
.............. bandpass
BPF
......... bandpass filter
BRS
................ brass
oscillator
CAL .............. calibrate
ccw
....... counter-clockwise
CER
..... ceramic
CHAN
.... channel
cm
.............. centimeter
CMO
.... cabinet mount only
ABBREVIATIONS
COEF ........... coefficient
COM ,.~.. ........ common
COMP ......... composition
COMPL ........... complete
CONN ........... connector
CP .......... cadmium plate
CRT ....... cathode-ray tube
CTL ......... complementary
CW ........ continuous wave
cw
.............. clockwise
..... centimeter
transistor logic
dc ........... direct current
deg
..... degree (temperature
interval or difference)
...' ........... degree (plane
angle)
OC .......... degree Celsius
(centigrade)
OF ........ degree Fahrenheit
OK ........... degree Kelvin
DEPC
..... deposited carbon
......... detector
........ diameter
parts list)
DlFF AMPL
...... differential
amplifier
div ................ division
DPDT
.......... double-pole,
double-throw
DSB
....... double sideband
DTL
........ diode transistor
DVM
....... digital voltmeter
ECL
........ emitter coupled
EMF
..... electromotive force
logic
logic
EDP ......... electronic data
ELECT .......... electrolytic
ENCAP
........ encapsulated
EXT
............... external
F
................... farad
FET
.... field-effect transistor
F/F
................ flip-flop
FH
............... flat head
FIL H
.......... fillister head
FM
.... frequency modulation
FP
............. front panel
FREQ
............ frequency
FXD
................. fixed
g
................... gram
GE
............ .germanium
GHz
............. gigahertz
GL
.................. glass
GRD
............ ground(ed)
h .................... hour
HET
............ heterodyne
HEX
............. hexagonal
HD
.................. head
HDW
............. hardware
HF
.......... high frequency
HG
............... mercury
HI
................... hgh
HP
......... Hewlett-Packard
HPF
........ high pass filter
HR
........... hour (used in
HV ............ high voltage
Hz
.................. Hertz
IC
......... integrated circuit
ID
.......... inside diameter
IF
............. intermediate
IMPG .......... impregnated
in
............ incandescent
INP
.................. input
INS
.............. insulation
processing
............... henry
parts list)
frequency
INT ................ internal
kg
................ kilogram
kHz
.............. kilohertz
k
.................. kilohm
LED ..... light-emitting diode
LF
........... low frequency
LG
................... long
LIN ....... linear taper (used
in parts list)
LK WASH
...... lock washer
LO ...... low; local oscillator
LOG
....... logarithmic taper
log logarithm(ic)
LPF
......... low pass filter
LV ............. low voltage
m
.......... meter (distance)
(used in parts list)
in parts list)
MET FLM ........ metal film
MET OX ...... metallic oxide
MF
...... medium frequency:
microfarad (used in
parts list)
MHz ............ megahertz
........ mho
NOTE
All abbreviations in the parts list will be in upper-case.