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Simpson 1000 - Page 45

Simpson 1000
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SPECIAL
APPLICATIONS
DEVELOPING
SETTINGS
FOR
NEW
TUBES
The
systematic
circuit
layout
of
the
Simpson
Tube
Tester
Model
1000
makes
it
possible
for
you
to
create
your
own
tube
testing
data
for
new
tubes
before
this
information
is
available
to
you
through
the
supplements
and
revised
roll
charts
which
you
will
be
able
to
obtain
from
Simpson
Elec-
tric
Company.
All
that
is
required
is
a
set
of
tube
charac-
teristic
data,
the
base
arrangement,
and
several
known
good
sample
tubes.
+
Here
are
the
steps
which
you
will
require
for
all
tubes
except
diodes
and
rectifiers:
1.
Set
the
FILAMENT
switch
to
the
position
which
taps
the
required
filament
voltage.
If
there
are
two
optional
filament
voltages
and
corresponding
contact
arrange-
ments,
choose
the
higher
voltage
and
observe
the
series
filament
connections
when
setting
the
toggle
switches
in
step
2.
2.
Set
toggle
switches
A
through
J
to
positions
which
will
connect
the
proper
source
of
voltage
to
each
cir-
cuit
element
for
normal
operation.
Toggles
A
through
I
set
connections
for
base
pins
1
through
9
respec-
tively,
and
toggle
J
sets
the
connection
for
the
cap
lead.
The
positions
of
the
switches
are
as
follows:
0
is
ground;
1
is
filament;
2
is
screen;
3
is
plate;
4
is
control
grid;
and
5
is
open.
NOTE
To
set
up
a
series
filament
connection
for
higher
voltage
in
an
optional-filament
tube,
connect
one
end
43

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