(6) Open the inner fiberboard carton and
1.2 cubic feet, and the weight is
remove the contents.
pounds.
b.
Removing
Contents.
Checking
Unpacked
Equipment
Check
the
equipment
against
the
packing
( 1 ) Cut and fold back the metal straps
list.
When
no
packing
list
accompanies
the
(when
used).
equipment, use the table of components (par.
( 2 ) Remove
the
from
the
wooden
5)
as
a
general
check.
If
the
equipment
is
cover
and
one
side
of
the
wooden
damaged, refer to paragraph 2. After a test set
packing
case
with
a
nailpuller.
Re-
is
removed
from
its
fiberboard
container,
re-
move the cover and the side. Do not
lease the fasteners, open the cover, and proceed
attempt to pry off the cover or the
as follows:
side; prying may damage the equip-
a. Check
to
see
that
the
adapters
ment.
are held firmly to the cover.
b. Check all controls for ease of rotation.
( 3 ) Remove the envelope that contains the
Tighten loose knobs.
technical manuals.
c. Check
for
a
broken
meter
glass
and
( 4 ) Remove
the
outer
fiberboard
carton
broken
lamps.
from the wooden packing case.
d. Check
the
ac
line
cord,
test
leads,
and
rubber gasket around the edge of the cover
( 5 ) Open the outer fiberboard carton and
remove
the
inner
fiberboard
carton.
(except
on
TV-7/U)
for
signs
of
Section II. CONTROLS AND
INDICATORS
10. General
Function
Switch or control
Improper
setting
of
the
FILAMENT
VOLT-
Removes voltage
OFF:
AGE
switch
6)
or
incorrect
operation
of
from FILA-
the pushbutton switches may damage the tube
MENT VOLT-
under test. Be sure that all the controls and
AGE switch.
switches
are
set
properly
before
testing
tubes.
FILAMENT selectors,
Connects filament of tube
left and right (10-
under test to filament volt-
Controls,
Indicators,
and
Jacks
position, 5-section
age supply.
a.
Switches
and
Controls.
rotary switches)
When set in one of positions
GRID selector (10-po-
Function
Switch or control
1-9, connects control grid
sition, 5-section
of tube under test to bias
rotary switch)
Connects ac
ON:
POWER switch . . . . . . . . . . . .
and signal voltages.
power to test
When set in one of positions
PLATE selector (10-
set.
1-9, connects plate of tube
position, 5-section
Removes ac
OFF:
under test to plate voltage
rotary switch)
power from
supply.
test set.
When set in one of positions
SCREEN selector (10-
Provides an 18-step selection
FILAMENT VOLT-
position, 5-section
1-9, connects screen grid of
of filament voltages from
AGE (20-position
rotary switch)
tube under test to screen
0.6-volt to 117 volts ac.
rotary switch)
voltage supply.
Enables ballast
BLST.:
When set in one of positions
C A T H O D E selector
tubes to be
(10-position rotary
1-9, connects cathode of
tested for con-
switch, 0-position
tube under test to desired
tinuity and
open)
test circuit.
supplies volt-
age to certain
When set in one of positions
SUPPRESSOR selector
rectifier tubes
(10-position rotary
1 - 9 , connects suppressor
for emission
switch, 0-position
grid of tube under test to
tests.
desired test circuit.
open)
