HP 8901B - Page 13

Model 8901B
Replaceable Parts
lbble 6-2. Abbreviations (2 of 2)
MOD .... modulator
MOS
........... metal-oxide
ms
............. millisecond
MTG ............. mounting
MTR
....... meter (indicating
mV ................ millivolt
mVac
........... millivolt. ac
mVdc
........... millivolt, dc
mVpk
......... millivolt, peak
mVp-p ....... millivolt, peak-
. . millivolt, rms
MUX ............. multiplex
MY
................. mylar
pA ............ microampere
pF .............. microfarad
pH
............. microhenry
pmho ............ micromho
ps ............ microsecond
pV
............... microvolt
pVac
.......... microvolt, ac
pVdc
.......... microvolt, dc
pVpk
........ microvolt, peak
pVpp ....... microvolt, peak-
semiconductor
device)
to-peak
NC .......... no connection
N/C
........ normally closed
N/O .......... normally open
NOM
.............. nominal
NORM
............. normal
NPN ...... negative-positive-
NPO ....... negative-positive
negative
zero (zero tempera-
ture coefficient)
NRFR ..... not recommended
for field replacement
NSR
......... not separately
replaceable
ns
...... .. nanosecond
nW
.... nanowatt
OB0 .... order by description
....
OD .. outside diameter
OH .............. oval head
OP AMPL ....... operational
OPT ................ option
OSC
............. oscillator
ox .........
amplifier
list)
PAM ........ pulse-amplitude
modulation
PC
........... printed circuit
PCM .... pulse-code modula-
tion; pulse-count
modulation
PDM ......... pulseduration
modulation
pF ............... picofarad
negative
PIV ..... peak inverse voltage
PL
............. phase lock
PLO .... phase lock oscillator
...................
pk peak
POLY .......... polystyrene
PORC
............ porcelain
used in parts list)
p-p ........... peak-to-peak
PP ...... peak-to-peak (used
PREAMPL ...... preamplifier
frequency
PRR .... pulse repetition rate
PT
.................. point
PTM
............ pulse-time
PWM
........... pulse-width
ps ... ... picosecond
modulation
modulation
PWV .......... peak working
voltage
.......... resistance-
capacitance
RECT.. ............ rectifier
interference
RH ... round head; right hand
RLC
............. resistance-
inductance-
capacitance
RMO ....... rack mount only
rms
....... root-mean-square
RND ................ round
ROM
..... read-only memory
RBP
......... rack and panel
RW ....... reverse working
S ...... scattering parameter
...I ..... second (plane angle)
S-B ........ slow-blow (fuse)
SCR
....... silicon controlled
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
voltage
(used in parts list)
rectifier; screw
SS ........... Service Sheet
SSB ........ single sideband
SQ ..........
SWR .... standingwave ratio
SYNC
.......... synchronize
T
..... timed (slow-blow fuse)
TA
............... tantalum
TC ............ temperature
compensating
NOTE
All abbreviations in the parts list will be in upper-case.
MULTIPLIERS
Abbreviation
T
G
M
k
da
d
m
n
P
f
a
C
P
Prefix
tera
gigs
mega
kilo
deka
deci
centi
milli
micro
nano
pic0
femto
atto
Multiple
10'2
1 09
106
103
10-1
10-2
10-3
10-6
10-9
10-12
lo+
10-18
10
TD .............. time delay
TERM ............. terminal
TFT
...... thin-film transistor
TGL
................ toggle
TI ................. titanium
TOL ............. tolerance
TSTR ......
logic
TV ............... television
TVI .... television interference
TWT ..... traveling wave tube
U ........ micro (used
in parts list)
... microfarad (used in
parts list)
UHF ..... ultrahigh frequency
UNDEF .......... undefined
U N KEG ........ unregulated
VA ............. voltarnpere
Vac
............... volts, ac
VAR
.............. .variable
VCO ...... voltage-controlled
oscillator
(used in parts list)
oscillator
V(F) ........... volts, filtered
VFO ...... variable-frequency
VHF ..... very-high frequency
Vpk
............ volts, peak
Vpp ..... volts, peak-to-peak
Vrms ............ volts, rms
VTO ........... voltage-tune
VNM
......... vacuum-tube
V(X)
......... volts, switched
w .................... wan
W/
................... with
oscillator
voltmeter
voltage
WW ............ wirewound
W/O ............... without
YIG ...... yltrium-iron-garnet
2, ........... characteristic
impedance
6-4