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components
changed
the
03455-66501 Assembly from
Rev,
A
to
Rev. C.
Ag
A1U57
has
been changed
from
a
standard
power
TTL
to
a
low
power
TTL
device
and
resistor
assemblies
A2R17
and
R18
changed
from
2.2 kfl to
10
kfi
to reduce the
effects
of switch
contact
resistance.
This
change
has
been
made
on
instruments with
Serial
No's
1622A00906
and
greater.
^
Resistor
R69
and
capacitor
C44
have been
added
to
filter
out
pulses
caused
by
switch
bounce
to eliminate
"double
entries"
In
the
MATH
mode.
Addition
of these
components
change
the
03455-66501
assembly
from
Rev.
C
to
Rev. D. This
change
has been
made
on
instruments
with
Serial
No's
1622A01506
and
greater.
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