Keithley 153, Instruction Manual, Page: 5 / 51

KEITHLEY INSTRU.lV1ENTS. INC.
INSTRUCTION MANUAL
CHANGE NOTICE
MODEL 153 tlICROVOLT-AMMETER
INTRODUCTION:
Since Keithley Instruments
is continually improving pro­
duct performance and reliability,
it
is often necessary to make changes
to Instruction
Manuals
to
reflect these
improvements. A
l
s
o
,
errors
in
In str
u
ct
i
on Manuals occasionally occu r that require changes. Sometimes,
due to printing lead time and shipping requirements, we can't get these
changes immediately into printed Manuals. The following new change
in­
formation is
supplied as a
supplement to
this
Manual
in order
to provide
the user
with
the latest
improvements and
corrections in the shortest
possible time. Many users will transfer this change information directly
to
a Manual to minimize
user
error.
All
c
h
a
ng
e
s
or additions are indi­
cated in itaZias.
Page 41, R
e
p
la
ceab
le Parts, Resistors should read
as
follows:
Rl72 9.9kn 0.1%,
1/3W
W
15909 1250-9.91<n
R-ll0-9.91< 22
R173 100
12
0.1%,
1/3W W 15909 1250-10012
R-llO-100 22
Pages
38
&
39,
Replaceable Parts, Diodes, should
read
as
follows:
0303 Reatifier�
1.OA, BOOV lN4006 MOT
RF-J8 27
030�
Reatifier.,
Z. OA.,
800V
lN4006
MOT
RF-J8
27
28775 AURORA ROAD , CLEVELAND. OHIO 44139 , (2HII 248 - 0400
TELEX: 98-!l489
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