Philips PM 3266 - Page 12

9
1.
GENERAL
INFORMATION
1.1.
INTRODUCTION
The
PM
3266
is
a portable
storage
oscilloscope
with
a very
high writing
speed
(1000 DIV/ps).
The
instrument
enables the
measurement
of
signals
at
a
high
sensitivity
(2 mV/DIV)
over an
extensive
bandwidth
(100 MHz).
The
oscilloscope
has
been
designed
using
a large
number
of
integrated
circuits,
which
guarantee
very
stable
operation
and reduce the
number
of adjusting
points.
As
an aid
to checking and
adjusting,
test points
have
been
included
at
appropriate
positions
around
the circuit.
The
instrument
features
various
storage
functions
such
as normal
and fast
writing
speed and
auto
erasure.
There is
a wide
choice
of display
possibilities,
such
as one channel,
two channels
alternately
or
chopped,
two
channels
added with
normal
and
inverted
positions
for both
input
signals, and
a
main
and
delayed
time-base.
Additional
features
of the
PM
3266 are the
3rd
channel TRIG
VIEW
and
ALTernateTB
facilities.
TRIG
VIEW
enables
the display
of
the
trigger signal
(internal
or external
applied)
via
a
3rd
channel by
push-button
selection.
ALT.TB
offers
the
instrument
user
a
simultaneous
display
of the signal
on the
two
time
scale provided
by the
main
time-base
and
the
delayed
time-base.
The
PM
3266
oscilloscope
features
a tapless power
supply
that
covers two voltage
ranges,
90 V
to 140 V and
200
V
to
264
V by
means
of a switch,
thus
obviating
the
need
for continuous
adjustment
to
the local
mains
voltage.
All
these
features
make
the oscilloscope
suitable
for
a wide range of applications.
Fig.
1.
1.
Portable
dual-trace
Storage oscilloscope PM
3266