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General Information
Model 1317A
Table 1-2. Reference Designators and Abbreviations
REFERENCE DESIGNATORS
A
ASSEMBLY
E
MISC. ELECTRICAL PART
P
PLUG
U
INTEGRATED CIRCUIT
AT
ATTENUATOR
F
FUSE
PS
POWER SUPPLY
(UNREPAIRABlE)
RESISTIVE TERMINATION
Fl
FILTER
Q
TRANSISTOR
V
VACUUM TUBE, NEON
B
MOTOR, FAN
H
HARDWARE
R
RESISTOR
BULB, PHOTOCELL, ETC.
BT
BATTERY
J
JACK
RT
VR
VOLTAGE REGULATOR
C
CAPACITOR
K
RELAY
THERMISTOR
(DIODE)
CP
COUPLING
l
INDUCTOR
S
SWITCH
W
CABLE
CR
DIODE
lS
SPEAKER
T
TRANSFORMER
X
SOCKET
Ol
DELAY LINE
M
METER
TB
TERMINAL BOARD
Y
CRYSTAL
OS
DEVICE SIGNALING (LAMP)
MP
MECHANICAL PART
TP
TEST POINT
Z
NETWORK
ABBREVIATIONS
A
AMPERE(S)
F
FARAD(S)
n
NANO (10. 9 )
rfi
RADIO FREQUENCY
A
AMPERE TURN(S)
FET
FIELD·EFFECT
nc
NORMALLY CLOSED
INTERFERENCE
ampl
AMPLIFIER(S)
TRANSISTOR(S)
no.
NORMALLY OPEN
rms
ROOT MEAN SQUARE
assy
ASSEMBLY
G
GIGA (10 9 )
npn
NEGATI VE -POSITIVE-
rwv
REVERSE WORKING
ampltd AMPLITUDE
gnd
GROUND(ED)
NEGATIVE
VOLTAGE
ns
NANOSECOND
SCR SILICON CONTROLLED
bd
BOARD(S)
RECTIFIER
bp
BANDPASS
H
HENRY(lES)
P
PICO (10- 12 )
sec
SECOND(S)
hr
HOUR(S)
pc
PRINTED (ETCHED)
std
STANDARD
c
CENTI (10- 2 )
HP
HEWLETT-PACKARD
CIRCUIT(S)
C
CARBON
Hz
HERTZ
pi<
PEAK
trmr TRIMMER
ccw
COUNTERCLOCKWISE
pop
POSITIVE-NEGATIVE-
coax.
COAXIAL
if.
INTERMEDIATE FREQ.
POSITIVE
u
MICRO (10- 6 )
coef
COEFFICIENT
inti
INTERNAL
p/o
PART OF
usee
MICROSECOND
com
COMMON
pop
PEAK-TO-PEAK
CRT
CATHODE-RAY TUBE
k
KILO (10 3 )
prgm PROGRAM
V
VOLTS
cw
CLOCKWISE
Ib
POUND(S)
prv
PEAK INVERSE
var
VARIABLE
Ipf
LOW-PASS FI L
TER(S)
VOLTAGE(S)
d
DECI (10- 1 )
ps
PICOSECOND
wI
WITH
dB
DECIBEL
m
MI LLI (10- 3 )
pwv
PEAK WORKING
w/o
WITHOUT
M
MEGA (10 6 )
VOLTAGE
wiv
WORKING INVERSE
ext
EXTERNAL
ms
MI LLiSECOND
rf
RADIO FREQUENCY
VOLTAGE
SERIAL PREFIX NUMBER
SERIAL SUFFIX NUMBER
COMPLETE SERIAL NUMBER
Figure 1-2. Instrument Serial Number
1-4
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