Parts
List
—
Type
561
A
HOW
TO
ORDER
PARTS
Replacement
parts are
available
from
or
through your local
Tektronix
Field
Office.
Changes
to
Tektronix
instruments
are
sometimes
made to
accommo
date
improved components
as
they
become
available,
and
to
give
you
the
benefit
of
the latest
circuit
improvements
developed
in
our
engineer
ing
department.
It
is
therefore
important,
when
ordering parts,
to
include
the
following
information
in
your
order:
Part
number
including
any
suffix,
instrument
type,
serial
number,
and
modification
number
if
applicable.
If
a
part
you
have
ordered
has
been
replaced
with
a
new or
im
proved part, your
local
Field
Office
will
contact
you
concerning
any
change
in
part
number.
7-2
