343A
by
consulting the Serial Number Effectivity List
at the
end of the parts list. Sometimes when a
part is
changed, the new part
can
and
should
be
used as
a replacement for the original part. In
this
event
a
parenthetical note is added in the
DESCRIPTION column.
5-5.
HOW TO OBTAIN PARTS
5-6.
Standard
components
have been used wherever
possible. Standard
components
may be ordered directly
from the manufacturer by using the manufacturer’s
part
number, or parts
may
be ordered from the John Fluke
Mfg. Co. factory or
authorized representative
by using
the Fluke part number. In the event
the part you order
has been replaced by a new or improved part, the
re-
placement
will
be accompanied by an explanatory note
and installation instructions, if necessary.
5-7.
You can insure prompt and efficient
handling
of
your order to the John Fluke Mfg. Co. if you
include the
following information:
a. Quantity.
b.
FLUKE Stock Number.
c.
Description.
d.
Reference Designation.
e.
Instrument model and
serial number.
Example:
2 each,
4805-177105,
Transistors,
2N3565,
Q107-108 for
845AR, s/n 168.
If you must order structural parts not listed
in the parts
list, describe
the
part as completely as possible.
A
sketch
of the part,
showing
its
location
to other
parts of
the instrument,
is
usually most
helpful.
5-8.
LIST OF
ABBREVIATIONS
ac alternating current
MHz
megahertz
rf radio frequency
A1 Aluminum
M
megohm rfi
radio frequency interference
amp
ampere
met flm
metal film res resistor
assy
assembly
ua
microampere rms root mean
square
cap
capacitor
uf
microfarad
rtry
rotary
car flm carbon film
uh
microhenry
sec
second
C
centigrade
usee
microsecond
sect
section
cer ceramic
uv
microvolt
S/N
serial number
comp
composition
ma
millampere
Si
silicon
conn
connector
mil millihenry
milliohms
scr
silicon controlled
rectifier
db
decibel
m
spdt single-pole,
double-throw
dc
direct current
msec
millisecond
spst single-pole,
single-throw
dpdt
dpst
double-pole, double-throw
double-pole, single-throw
mv millivolt
sw
Ta
switch
tantalum
elect electrolytic
mw milliwatt
tstr
transistor
F
fahrenheit
na
nanoampere
tvm transistor voltmeter
Ge germanium
nsec
nanosecond
uhf
ultra high frequency
gmv guaranteed minimum value
nv
nanovolt
vtvm vacuum tube
voltmeter
h henry
n
ohm
var variable
Hz hertz
ppm
parts per
million
vhf
very high frequency
hf
high frequency
piv peak inverse voltage
vlf very low frequency
IC integrated circuit
P-P
peak to peak
v
volt
if
intermediate frequency pf picofarad
va
voltampere
k kilohm
piste plastic
vac
volts,
alternating
current
kHz
kilohertz
p
pole
vdc
volts, direct
current
kv kilovolt
pos position
w
watt
If low
frequency P/C printed circuit
ww
wire wound
5-2
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