Tektronix 570, Manual

Page: 7 / 134

3/G6
TYPE 570 CHARACTERISTIC·CURVE TRACER
Pictures Dynamic Vacuum-Tube Characteristics
I I -i : .......
Displays Family of Curves
on
CRT Screen
Four
to
twelve
characteristic
curves
per
fa
mi Iy.
Plots All '-mportant Characteri.stics
Plate
current
against
plate or
grid
voltage.
Screen
current
against
plate
or
grid voltage.
Grid
current against plate
or grid
voltage.
Positive-Bias Curves
Plots up to 8
positive-bias
curves
per family.
Calibrated Controls
Accurate current
and voltage readings directly from
the crt
screen.
Wide Display Range
11
current
ranges
from
0.02
ma
/
div to
50
ma/div.
9
voltage
ranges
from
0.1
v/div to
50
v/div.
11 series-load
resistors from
300
ohms to
1
megohm.
7 grid-step values
from 0.1 v/step
to
10
v/step.
GENERAL DESCRIPTION
The Tektronix Type
570
Characteristic-Curve Tracer
presents an
accurate
graphic analysis of vacuum-tube
characteristics under
a
l
m
o
s
t
any
conceivable operating
conditions.
Circuit design
can now
be tailored
to
more
closely fit
the
operating charocteristics
of
available
tubes.
Tubes
can
be
selected faster and
more
accurately
for circuits requiring other than average vacuum-tube
characteristics. Two-socket arrangement
with
front-panel
switching permits rapid
comparisons
between two
tubes,
or two sections of the
same
t.ube. You
can
also
make
rapid
comparisons with preselected curves
outlined
on
a
crt
mask.
Patch -cord
con
nector system with socket­
adapter plates gives
you complete
con
t
r
o
l
of oper
a
ti ng
­
condition setup. Various socket-adapter plates
fur­
nished
and
wide range of
heater voltages available fit
the
requirements
of
practica lIy all
receiving-type
vacuum tubes.
Tektronix,
'nc. 95