Accessories
—
Type
561
A
TABLE
6-8
UHF
SYSTEM TERMINATIONS
Pittings:
One UHF Plug — One UHF Jack
Description
Part
Numbers
50!?
Termination Resistor,
1.5
watts.
Unit;
011
045
Replaces:
011
001
Elements:
2, 309-372
75
LI
Termination
Resistor,
1.5
watts.
Unit:
0)1-046
Replaces:
011
-007
Elements:
2, 309-374
93!?
Termination
Resistor,
1.5
wot
’
s
Unit:
0)1-047
Replaces
011-011
Elements:
2,
309-374
170
El
Termination
Resistor,
0
5
wott.
Vswr,
1.25
at
30
me.
Unit:
011-048
Replaces:
011
016
Element:
1,309 360
the
50-ohm
termination
either
ac-
or
dc-coupled
in
order
to
attain
the
stated
attenuation.
It
is
not
possible
to
stock
attenuator
heads
to obtain other
values
of attenuation
The
resistors
used
throughout
the
P6026
Passive
Probe
system
are
rtI
%
values.
Thus
the
input
resistance
when
using
the
P6026 with
a
Tektronix
50-ohm
sampling
system
is
within
2%.
All
At'enuator
Head attenuation ratings
are
within 2%
of
thot
stated
on
the
individual
head.
(NOTE: The
P6026
will
degrade
the
highest
frequency
performance
of the
Type
3576 Sampling Unit
in
the
form
of
o
slight
rounding
off
of
a
fast
rise
pulse.
Higher performance
probes
with
fixed
attenuation are
in
the
development
stage
at
the
time
of
this printing.
Consult your
local
Tektronix
Field
Engineer
for
details.)
PROBES
The
most
common
method
of
connecting
signoh to on
oscilloscope
vertical
amplifier
is
Io
use
a
probe
of
appro
priate
atlcnualion.
An
attenuator
probe
significantly re
duces
the
loading
on
the
circuit
being measured
below
the
loading
value
of
the
signal
amplifier
input
terminals.
An
attenuator
probe
can
be
used
effectively
on
cither a
stand
ard
1-megohm
input
amplifier,
or
a
Sampling
System
50
ohm
signal
amplifier,
TYPE
P6026
Passive Probe
The
P6026
Passive
Probe is
designed
for
use
with
50-ohm
input
Sampling
Systems.
Ils
frequency
response
is
such
that
il
does
not
alter
the
fre
quency
response of
a
600-mogacyclo
sampling
system
more
than
‘
3%.
Seven
attenuators
provide
attenuation
ratios
of
5
through
500,
cither
ac
or
de coupled.
The
P6026
Probe
consists
of:
a
GR
Typo B74
50 ohm
con
nector
to
probe
adapter,
a
dc-couplod
50-ohm termination,
an
oc-couplcd
50
ohm
termination,
plus
attenuator
heads
of
X5,
X10,
X20, X50,
XI
00,
X200 and X500,
a
remove
able
ground
clip,
and
a
50-ohm
nominal surge impedance
RG-58A/U
10-nsec
cable.
All
atlcnuoiors must be
used
with
TABLE
6-9
PROBE
SPECIFICATIONS
Probe
and
Connector
Cable
Length
Allen.
Ratio
Input
Impedance
Voltage
Rating
(Max.)
Part
Number
Resistance
Meg
!?
Capacitance
—
pf
Min.
‘
Max.
”
UHF
BNC
42
inch
10
10
14
14
600
010
038
010
064
P6017UHF
6
foot
10
10
17
17
600
010-056
010
066
P6022
BNC
9
foot
10
10
20
20
600
010
057
010
067
12
foot
10
10
23
23
600
010-058
010 068
42
inch
1
1
67
94
600
010
070
010-074
P6027-UHF
6
foot
1
1
94
120
600
010-071
010-075
P6028-BNC
9
foot
1
1
120
147
600
010-072
010-076
12
foot
1
1
146
173
600
010-073
010-077
42
inch
100
9.1
25
2.8
2000
010-024
010
029
P6002-UHF
6
foot
100
9.1
28
325
2000
010-034
010-050
P6005-BNC
9 foot
100
9.1
3.5
4.0
2000
010-043
010051
12
foot
100
91
38
4.0
2000
010
044
010052
t
See deroiing information.
* When
connected to insfrurnenh with 20 pf input capacitance.
** When connected to inshu-nents
with input capocilance up to 50 pf.
6-5
