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Model 5305B
Replaceable Parts
ENCAP
= encapsulated
EXT
= external
F
= farad
FET
= field-effect transistor
F/F
= flip-flop
FH
= flat head
FOL H
= fiIIister head
FM
= frequency modulation
FP
= front panel
FREO
= frequency
FXD
= fixed
g
= gram
GE
= germanium
GHz
= gigahertz
GL
= glass
GND
= ground(ed)
H
= Henry
h
= hour
HET
= heterodyne
HEX
= hexagonal
HD
= head
HDW
= hardware
HF
= high frequency
HG
= mercury
HI
= high
HP
= Hewlett-Packard
HPF
= high pass filter
HR
= hour (used in parts list)
HV
= high voltage
Hz
= Hertz
IC
= integrated circuit
ID
= inside diameter
IF
= intermediate frequency
IMPG
= impregnated
In
= inch
INCD
= incandescent
INCL
= include(s)
INP
= input
INS
= insulation
INT
= internal
kg
= kilogram
kHz
= kilohertz
kΩ
= kilohm
kV
= kilovolt
Ib
= pound
LC
= inductance-capacitance
LED
= light-emitting diode
LF
= low frequency
LG
= long
LH
= left hand
LIM
= limit
LIN
= linear taper (used in
parts list)
Iin
= linear
LK WASH = lockwasher
LO
= low; local oscillator
LOG
= logarithmic taper
(used in parts list)
log
= logarithm(ic)
LPF
= low pass filter
LV
= low voltage
m
= meter (distance)
mA
= milliampere
MAX
= maximum
MΩ
= megohm
6
MEG
= meg (10
) (used in
parts list)
MET FLM = metal film
MET OX
= metal oxide
MF
= medium frequency;
microfarad (used in
parts list)
MFR
= manufacturer
mg
= milligram
MHz
= megahertz
mH
= millihenry
mho
= mho
MIN
= minimum
9E-6-2
ABBREVIATIONS (CONTINUED)
min
= minute (time)
...'
= minute (plane angle)
MINAT
= miniature
mm
= millimeter
MOD
= modulator
MOM
= momentary
MOS
= metal-oxide semi-
conductor
ms
= millisecond
MTG
= mounting
MTR
= meter (indicating
device)
mV
= millivolt
mVac
= millivolt, ac
mVdc
= millivolt, dc
mVpk
= millivolt, peak
mVp-p
= millivolt, peak-to-peak
mVrms
= millivolt, rms
mW
= milliwatt
MUX
= multiplex
MY
= mylar
µA
= microampere
µF
= microfarad
µH
= microhenry
µmho
= micromho
µs
= microsecond
µV
= microvolt
µVac
= microvolt, ac
µVdc
= microvolt, dc
µVpk
= microvolt, peak
µVp-p
= microvolt, peak-to-
peak
µVrms
= microvolt, rms
µW
= microwatt
nA
= nanoampere
NC
= no connection
N/C
= normally closed
NE
= neon
NEG
= negative
nF
= nanofarad
NI PL
= nickel plate
N/O
= normally open
NOM
= nominal
NORM
= normal
NPN
= negatlve-posltlve-
negative
NPO
= negative-positive zero
(zero temperature
coefficient)
NRFR
= not recommended for
field replacement
NSR
= not separately
replaceable
ns
= nanosecond
nW
= nanowatt
OBD
= order by description
OD
= outside diameter
OH
= oval head
OP AMPL = operational amplifier
OPT
= option
OSC
= oscillator
OX
= oxide
oz
= ounce
Ω
= ohm
P
= peak (used in parts
list)
PAM
= pulse-amplitude
modulation
PC
= printed circuit
PCM
= pulse-code modulation;
pulse-count modulation
PDM
= pulse-duration
modulation
pF
= picofarad
PH BRZ
= phosphor bronze
PHL
= Phillips
PIN
= positive-instrinsic-
negative
PIV
= peak inverse voltage
pk
= peak
PL
= phase lock
PLO
= phase lock oscillator
PM
= phase modulation
PNP
= positive-negative-
positive
P/O
= part of
POLY
= polystyrene
PORC
= porcelain
POS
= positive; position(s)
(used in parts list)
POSN
= position
POT
= potentiometer
p-p
= peak-to-peak
PP
= peak-to-peak (used in
parts list)
PPM
= pulse-position
modulation
PREAMPL = preamplifier
PRF
= pulse-repetition
frequency
PRR
= pulse repetition rate
ps
= picosecond
PT
= point
PTM
= pulse-time modulation
PWM
= pulse-width modulation
PWV
= peak working voltage
RC
= resistance capacitance
RECT
= rectifier
REF
= reference
REG
= regulated
REPL
= replaceable
RF
= radio frequency
RFI
= radio frequency
interference
RH
= round head; right hand
RLC
= resistance-inductance-
capacitance
RMO
= rack mount only
rms
= root-mean-square
RND
= round
ROM
= read-only memory
R&P
= rack and panel
RWV
= reverse working voltage
S
= scattering parameter
s
= second (time)
...''
= second (plane angle)
S-B
= slow-blow (fuse (used
in parts list)
SCR
= silicon controlled
rectifier; screw
SE
= selenium
SECT
= sections
SEMICON = semiconductor
SHF
= superhigh frequency
SI
= Silicon
SIL
= silver
SL
= slide
SNR
= signal-to-noise ratio
SPDT
= single-pole, double-
throw
SPG
= spring
SR
= split ring
SPST
= single-pole. single-
throw
SSB
= single sideband
SST
= stainless steel
STL
= steel
SQ
= square
SWR
= standing-wave ratio
SYNC
= synchronize
T
= timed (slow-blow fuse)
TA
= tantalum
TC
= temperature
compensating
TD
= time delay
TERM
= terminal
TFT
= thin-film transistor
TGL
= toggle
THD
= thread
THRU
= through
TI
= titanium
TOL
= tolerance
TRIM
= trimmer
TSTR
= transistor
TTL
= transistor-transistor
logic
TV
= television
TVI
= television interference
TWT
= traveling wave tube
-6
U
= micro (10
) (used in
parts list)
UF
= microfarad (used in
parts list)
UHF
= ultrahigh frequency
UNREG
= unregulated
V
= volt
VA
= voltampere
Vac
= volts ac
VAR
= variable
VCO
= voltage-controlled
oscillator
Vdc
= volts dc
VDCW
= volts dc, working (used
in parts list)
V(F)
= volts. filtered
VFO
= variable-frequency
oscillator
VHF
= very-high frequency
Vpk
= volts peak
Vp-p
= Volts peak-to-peak
Vrms
= volts rms
VSWR
= voltage standing wave
ratio
VTO
= voltage-tuned oscillator
VTVM
= vacuum-tube voltmeter
V(X)
= volts. switched
W
= watt
WI
= with
WIV
= working inverse voltage
WW
= wirewound
W/O
= without
YIG
= yttrium-iron-garnet
Zo
= characteristic
impedance
NOTE
All abbreviations in the parts
list will be in upper case.
MULTIPLIERS
Abbreviation Prefix
Multiple
12
T
tera
10
G
giga
10
M
mega
10
k
kilo
10
da
deka
10
d
deci
10
c
centi
10
m
milli
10
µ
micro
10
n
nano
10
-12
p
pico
10
-15
f
femto
10
-18
a
atto
10
9
6
3
-1
-2
-3
-6
-9
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