DYNAMIC
MUTUAL
CONDUCTANCE
DYNA-JET
INSTRUCTION
TUBE
TESTE<R
MANUAL
OPERATING
Model 707
DYNA-JET
INSTRUCTIONS
FOR
DYNAMIC
B & K DIVISION
1801
MUTUAL
TUBE
West
Chicago,
CONDUCTANCE
TESTER
Of
DYNASCAN CORPORATION
Belle
Plaine
Avenue
lliinois
60613
Information
on
your
new
Dyna-Jet
Model
707
Tube
Tester
No.1-The
the
TV
tubes
only a minimum
No.2-The
tubes
bridge.
is
usually
Dyna-Jet
No.3-Each
1 megohm.
furthermore
No.4-Gas,
closed
little
No.
tubes
ient
for
No.6-The
)f
this
Model
made
in
for
their
Some
tubes
sufficient.
Emission
These
this
by
an
exceptionally
as 2 or 3 microamperes
5--Each
can
be
checked
selecting
instrument.
707,
such
for
simple
Dyna-Jet
general
use.
number
Model
707 will
Dynamic
such
Tube
circuit.
tube
is
tests
test
is
grid
emission,
section of a
and
dual
section
Model
707
All
of
as 10
pin
installation
WHAT IT
Model
707
Tubes
of
controls
provide
Mutual
Conductance
as
diodes
types
tested
automatically
are
made
made
before
or
even obscure
sensitive grid
of
current
dual-section
selected for
tubes
is
obsolescence
the
new
tubes,
if a new
WILL
Tube
Tester
can
be
tested
need
be
set.
accurate
are
checked
in
the
checked
between
the
the
Gm
current
in
the
tube
balance
to
be
used
proof
type
sockets
compactrons,
type
of
DO
will
check
more
in
an
incredibly
results
(Gm)
for
switch
various
measurement.
grid-to-cathode
grid
is
between sections.
in
push-pull
as a result
are
nuvistors, etc.
socket becomes necessary.
Qecause
in a true
emission only,
section
for
shorts
elements
check.
This
circuit.
checked
separately.
circuits.
included
than
short
it
transconductance
since
are
tested
and
leakage
of
the
leakage
test
will reveal
This
of
the
switch
in
this
section
Provision
99%
time
checks
this
in a new
tube
are
all
Therefore
is
conven-
section
is
since
most
up
of
of
test
to
and
dis-
as
the
also
General
Information
on
your
Dyna-Jet
Model
707
TESTING
In
radio
diodes)
are
horizontal
fore,
any
turn, is
results
sistance
on
amount
current.
inclusive single
oscillators)
the
most
radio
or
governed
The
mutual
from a
The
amplification
of
the
Since
Rl
the
Gm
The
Gm
of
a.c.
This
Measuring
used
TV
is
of
for a given
TUBES
and
television
as
some
important
tube
by
its
conductance
small
change
stage.
constant
the
tube.
signal
is
done
the
mutual
test
that
FOR
DYNAMIC MUTUAL CONDUCTANCE
circuits
type
of amplifier.
are
basically a mplifiers
characteristic
'will
function
mutual
conductance.
is
the
in
grid
where
:
6I
= a
p
6E
= a
g
of a circuit
in
tube
voltage
by
means
can
= GmRI.
any
circuit,
can
be
to
the
of
a sensitive
conductance
be
made
practically
to
in
its
ratio
voltage.
change
small
we see
measured
grid
of a tube
on
Even
with
be
checked
circuit, is
of
the
in
plate
change
Where
that
accurately
and
measuring
bridge
any
tube.
all
tub
oscillator
regenerative
to
its
ability
change
signal
in
grid
Rl
the
amplification
circuit.
provides
es
(except
circuits
determine
to
in
the
current.
signal
voltage.
is
the
equivalent
by
applying
the
resulting
the
most
rectifiers
(i.e.-R.F.
feedback.
how
amplify.
plate
current
depends
accurate
and
There·
effectively
This,
that
load
directly
the
correct
a.c.
plate
and
01
in
re-
all
TESTING DUAL TRIODES
Each
section
pressing a push
balance
between
of a dual-section
button
switch.
sections.
This
AND
tube
Therefore,
test
is
illustrated
TEST I
OTHER
is
checked
tubes
MULTI·SECTION TUBES
separately
can
in
Fig.
be
checked
1.
METER
and
quickly
and
by
selected
defor
The
it
quickly
fier,
and
In
order
we
must
There
the
grid
to
what
draws
current
"negative
1
Figure
I-Each
TESTING TUBES
Grid
picks
R.F.
look
is
of
is
grid
a tube.
known
Emission
tuner
to
into
normally
and
out
those
circuits.
understand
the
theory
some
Some
as
"grid
commonly
current"
can
B+
Section of Multisection Tube Tested Separately.
FOR
GRID EMISSION AND GAS
Gas
Test
is
an
tubes
which
how a tube
of
electron
little
of
this
vapor
emission",
known
be
followed
l'~re
2-Negative
invaluable
can
cause
can
have
tubes.
evaporation
tends
where
as
"negative
in
Figure
Grid Curren1.
to
of
the
trouble
"grid
the
deposit
grid
grid
2.
aid
in
in
emission"
cathode
on
itself
current".
Rp
TV
a.g.c.,
coating
the
emits
servicing
sync,
and
grid
and
electrons
The
I.F.
"gas
material
gives
flow
because
ampli-
current"
on
rise
and
of
this
The
electrons
supply
to
age
drop
positive
than
If
a
slight
cathode
electrons,
strike
the
electron
flow
current"
positive by
Now
emission
that
the
grid
In
Figure
the
bias
because
of
drive
the
the
grid
across
the
it
normally
amount
will collide
leaving
positive
grid,
taking
of
this
and
can
be
this
"gas c,prrent".
let
us
see
current
or
would
3, a
typical
voltage
in
the
flow
tubes
to
flow
from
leak
resistor
grid
leak
would
of
"gas"
with
molecules
ions
an
electron
"gas
current"
traced
what
happens
gas
current
tend
to
I.F.
that
stage
of
current
saturation,
the
grid
Rg
resistor
with
is
present
(ionization).
from
on
Figure
go
more
stage,
and
through
causing
to
and
up
Rg
no
grid
of
the
the
is
exactly
2.
if
an
I.F.
(negative
positive
we
see
other
clipping
the
plate
to
the
is
such
emission.
in a tube
gas
Some
grid
to
the
same
Notice
amplifier
grid
if
negative
that
if
associated
Rl.
Making
or
then
back
grid
again.
that
it
causes
some
of
and
may
of
these
form a gas
as
it
that
tube
grid
is
any
stages
the
is
again
current).
there
overloading.
through
Notice
the
the
electrons
knock
positive
molecule
for
the
the
grid
in a TV
In
Figure 2 we
current
negative
will
go
grid
more
the
that
grid
to
off
one
ions
again.
"grid
is
made
set
flowed.
grid
more
positive will
power
the
go
more
from
or
more
may
emission
more
has
noted
current,
positive
volt·
the
then
The
grid
After
signal
is
oscillator
black
portions
To
achieve
was
employed.
~
..
detection, a video
clipped
in
an
to
synchronize
the
video
Figure
sensitive
I.F.
Figure
5-Overloaded
will
try
of
this
+ k I -
--·-~-·N~AlIV[
Figure
signal
stage
(B).
4-Normal
grid
~
3-Typical
normally
it
will
both
on
This
results
or Clipped Video and Sync Signal.
emission
AGe
VOUAGt
I.F.
Stage.
appears
like
blanking
in
pulling
gas
test.
as
Figure
signal
or
the
look
the
Video and Sync Signal.
or
I>
shown
5.
snaking
circuit
in
Now
(A)
Figure
the
and
of
shown
horizontal
on
the
picture.
in
4.
If
the
Figure
the
very
Ii
The
is
biased
the
5.6
megohm
of a 6BN8
biased
just
6BN8
and
However, if
of
the
cathode
5.6
meg
across
the
meter
deflection.
that
the
tube
under
beyond
d.c.
beyond
no
resistor
5.6
test
tube
cut-off
resistor.
amplifier
reading
the
tube
coating,
back
meg
Upon
is defective
test
has
so
cut-off.
is
obtained
Figure
under
then
to
the
resistor,
seeing
its
normal
that
no
plate
The
same
the
Under
5.6
conditions
these
on
the
and
5.6MEG
BIAS
6-Grid
Emission
test
is
gaseous,
current
will flow
grid
again.
lifting
the
cut-off
this
deflection,
and a replacement
plate
to
current
megohm
in
conditions,
meter
in
NEGATIVE
SUPPLY
rest
or
from
This
will
bias
grid
flows.
resistor
this
no
its
plate
Circuit.
its
grid
grid
produce
on
the
technician
is
indicated.
voltage
applied,
This
bias
is
also
tube
are
plate
current
circuit.
METER
B +
is
contaminated
to
plate
a positive voltage
the
6BN8
but
is
applied
in
the
grid
such
that
flows
with
and
through
and
producing
immediately
the
through
circuit
it,
too,
in
knows
grid
the
some
the
drop
is
a
The
test
1 megohm. A
cause
scale.
age
show
15%
slump
point
of
life
a
tube
for
a deflection
Either
indication indicates shorted elements.
Many
manufacturers
conditions will give a
adequate
of
heater
or
decay
where
the
remaining
showing a
AUTOMATIC LINE VOLTAGE COMPENSATION
Every
as
Gm
bridge
voltages.
effort
possible.
the
line
of
readjusting
simple
compensation
monitors
the
necessity
line
shorts
shorted
of
Gm
under
voltage
indicates
tube
cannot
sharp
has
been
Toward
has
been
voltage
to
compensate
between
tube
will
the
meter
have
strong
normal
may
that
will
have a short
be
too closely
slump
made
incorporated
at
the
line
SHORTS
elements
cause
into
UFE
found
indication
test
be
marked
the
space
is
not
to
make
this
end, a unique
all
times
for
these
voltage
TEST
is
made
neon
reject
to a sensitivity
lamp
marked
portion
the
the
TEST
that
testing
tubes
of
its
conditions; however, a
charge
estimated,
a good risk
the
into
and
line
for
probable
by a sharp
remaining
operation
the
automatically
voltage variations.
different
6
slump
of
the
tube
useful
you
can
for
continued
of
patented
tester. A voltage sensitive
types
of
the
under
useful
has
life.
be
this
adjusts
of
of
Shorts
Short
reduced
life. A
reduction
in
Gm
been
While
reasonably
trouble-free
instrument
automatic
the
This
tubes
and
approximately
to
glow
or
heater
tube
of
the
sure
as
fast
line
at
different
will
meter
volt-
may
10%
This
to
amount
that
service.
and
voltage
bridge
Reject
reading.
depleted
sensitivity
eliminates
the
the
to
of
HOW
1.
Insert
2.
Turn
3.
Set
Heater
4.
Put
ing
of
the
5.
If
tube
as
indicated
6.
Insert
7.
Test
Test
Procedure
The
Model
NOT
use
type
of
poWer
will glow.
The
Model
socket
or
vision sets.
home
servicing
of
the
tube
TO
line
cord.
power
Switch
CIRCUIT
on
whether
tester
is
to
tube
in
in
sequence;
707 is
any
other
and
707
Jet-Check
This
section
of
tester
OPERATE
switch
ON.
and
THE
Sensitivity
TRANSFER
the
pre·wired
is
to
be
used.
be
tested
in
on
the
the
chart.
socket.
Shorts,
designed
type
with
the
Tube
Tester
section
provides
television receivers.
panel.
of
Power
current.
tests
Grid
for
use
is
effectively two
the
the
MODEL
push
button
Jet·Check
Switch
Emission
on
105/125 volt, 50/60 cycle A.C. only.
With
Switch
most
high
This
Control
section,
the
line
in
the
commonly
speed
section
707
as
in
section
and
cord
ON
tube
testing
is
TUBE
indicated
proper
set
up
Quality
connected
position,
testers
used
of
located
position,
or
switches A thru
in
tubes
tubes
on
TESTER
in
tube
Switch
of
tube.
to
the
red
one.
The
found
so
the
upper
chart.
depend-
section
the
proper
pilot
lamp
multiple
in
necessary
portion
DO
tele-
D
in
The
panel
and
are
2 10
quently
section
that
Selection
plished
five
buttons
socket
or
depressed
is
in
operation.
slightly
then
spring
second
section
has
its
pin
sockets, a
used
tubes
protects
between
by a Circuit
located
Jet-Check
and
locked
The
to
the
left.
return
or
Switch
tested
obsolescence.
right
the
"Down"
is
UP
position. See
section
associated
socket,
in
this
Switch.
of
the
the
locked
is
released
own
sockets
Nuvistor
are
against
the Jet-Check section
Transfer
to
the
section of
in
button
The
button
to
the
Fig.
7
is
located
with it.
and 2 Compactron
portion
of
and
This
switch
meter.
When
instrument
position,
down
7
by
by
Fig.
the
depressing
pushing
at
Included
the
the
is
the
is
activated.
Switch
7.
the
bottom
in
sockets.
instrument.
Switch
the
top
button
section
the
to
the
right.
of
this
section
push
is
"Up"
When
of
button
the
socket
The
It
button
the
the
The
the
and
tube
tester
section
less fre-
is
also
this
is
accom-
of
mUltiple
button
instrument
pushing
button
will
the
is
As
active, a
in
the
indicates
an
additional
neon
Switch
which
indicator
section
section
aid
of
to
is
located
the
of
the
quickly
in
panel.
instrument
determine
the
Multiple
See
Fig. 7.
is
which
The
active.
section
Socket
lamp
panel
that
of
the
section
glows
Model
707 is
and
another
immediately
SETTING
The
most
On
the
type
6BK5
can
that
applied
filament
setting
a
to
RECT
SOCKET.
IN
tested
settings)
numbered 1 to
the
The
because
two
though
therefore
the
Test 2 button.
type
triode
and
tubes
jacks
tifies .
socket
which
is pri
nted
also
be
test
the Hea
The
setting
to
the
tubes,
is
usually
6BK5,
the heater
12;
and
for a 25BK5,
CAUTION:
FILAMENT
FAILURE
BURNING
Since
hundreds
on
the
is
The
setting
socket
panel.
tubes
with
there
dissimilar
on
some
the
When a multiple
section
that
The
first section
6AT6
(triode . double
section
In
the
case
the
second
A
lead,
fitted
having
are
placed
each
pin
UP
TO TEST IN THE JET.CHECK SECTION
used
tubes
are
panel
is
ter control
Model
listed
are
sensitivity
and
plate
jack
itself,
available
on
ed
tube
and
OUT A FILAMENT.
35
for
multiple
sections,
has
of
section
in
the
socket
in
that
same
is
set
of
the
Heater
under
the
switch
determined
control
the
THE
HEATER
VOLTAGE
TO
of
other
707, each
in
the
to
aid
in
the
Sensitivity
Examples:
sections,
two
separate
the
types
(e.g.
settings
tube
of
the
most
tested
is
in
~he
Test 2 position
a 5U4,
the
with
with a plate
leads
connected
near
the
proper
with
its
test.
would
OBSERVE
Dyna
EXAMPLE:
the
associated
listed
beside
are
listed
more
than
panel;
socket.
to
the
switch
For
is
set
by
the
first
be
control
CONTROL
BEFORE
tube
types
additional
-J
et
the
quick
control
6AU6
6U8
such
sections
sensitivity
6SN7-78'78)
are
the
dissimiliar
elements
the
pentode, and
diode)
is
first section
Test 2 button.
cap
connector
to
sockets
appropriat
only
the
one
filament
how
ever,
the
The
only
correct
filament
position
example:
to
12
for
number
turned
to
would
be
INSERTING
THIS
besides
type
Tube
Selector
identification
is
printed
- 82
~79'55
as
the
in
this
tube
settings
the
same.
sections
and
the
6U8-79'55
then
to
be
tested,
both
diodes
would
and a pin
caps
on
for
use
socket
or
e sockets
most
popular
voltage.
12BK5,
difference
the
12.6
of
6;
set
MUST
PRECAUTION
(with
6U8,
are
other
top
sockets.
25BK5
in
voltage.
determines
switch
is
volt
filament
the
tube
25.
BE
listed
socket
Index.
of
the
right
have
different
tested,
section
triode
will
tested
plug
of
the
the
designation.
SET
THE
placement
correct
next
two
the
will
be
tested
with
is
tubes.
plate
for a 12BK5, it
to
those
envelope.
two sections
is
the
the. Test 1 position
be
with
on
the
number
For
example:
and
50BK5
testing
these
the
filament
set
to 6 for
tubes, etc.
would
TO
THE
TUBE
COULD
on
the
panel
The
test
socket.
to
the
tube
sensitivity
Because
this
for
each
are
the
Test 1 button
be
tested
section
is
will
simultaneously.
the
Test 1 button
supplied
Appropriate
lead. A
test
panels.
of
the
tubes
voltage
6.3
Thus,
be
turned
IN
RESULT
can
and
control
sockets
type
settings
type
section,
same
with
tested.
test
for
testing
line
tube
the
tubes
volt
This
for
COR·
THE
be
are
on
has
al-
and
tests
the
If
the
pin
iden·
is
a
8
SETTING
All
tubes
have
Each
section
section
when
are
TUBE
TYPE
6AlS
6AR8
to
number
Each
indicated
section
tube
testing
now
the
socket
Fig. 8 shows a
instrument.
switches is
switches
test.
multiple
tiple
located between
used
You
UP
be
tested
being
typical
of
been
set,
of a multiple
tube
is
socket
tubes
ready
HEATER
6
6
TO
TEST
in
the
Switch
#36
or
listing
for a tube
the
switches
on
the
chart
insert
the
has
#39
in
to
proceed
section
different
in
Fig
and
the
Switch
SOCKET
39
39
also
shown
Figure 8-Typical
WITH
higher,
is
lettered
in
the
tube
into
. 8.
socket
section
with
the
SENSITIVITY
GOOD
Listin
section
in
the
to
column
the
tube
switch
There
#40.
test.
-BAD
85
38
30
g of
THE
SWITCH SECTION
of
the
Model
"Socket"
be
tested
and
proper
is
tested
settings. A
is a common
This
of
column
in
the
the
position
under
that
socket
separately. Each
is
the
the
instrument
A
B
4
5
4
5 4
Tube
Types
in
Chart.
707
Switch
for
letter. When
and
typical
plate
only
plate
.
C 0
12
12
12
are
of
the
section
each
proceed
listing
cap
cap
9
6
indicated
tube
chart.
of
of
all
with
section
of a mulconnector
connector
TEST
POS.
by
the
these
the
the
of
a
A
tube
is
pressing
See
Fig
The
or
Leakage
cause
on
the
the
meter
caus
es
of
the
making
intermittent
position
WHICH
Shorts
Insert
SHORTS
some
If
the
To
through
Shorts
be
rejected
indicator
ignored.)
ment. Therefore,
tested
the
push
. 7.
neo n
Shorts
up
to 1 megohm
the
Shorts
meter.
If
sca
les,
the
Shorts
meter
scale
the
Shorts
shorts.
when
ARE
Test -Switch
the
tube
push
inter-element
Shorts
indicator
test
for
each
of
indicator
. (As
may
C"rtain
SHORTS
button
lamp
a
tube
this
lamp
should
released: DO
SHORTED.
for
lamp
test
tube
The
shorts
labeled
should
to
glow.
causes
to
glow,
be
to
lightly
push
TEST
has
Section
into
the
button
when
shorts
is
made
glows,
any
other
positions
the
switch
tube
Shorts
in
types
Shorts
any
its
glows
instantaneously
the
- JET·CHECK SECTION
in
the Jet-Ch
SHORTS
be
observed while
of
value
Leakage
the
meter
leakage
or
the
discarded
tap the
button
NOT
proper
making
immediately
the
tube
or
while observing
of
the
switch
is
rotated
flicker
have
more
indicator
eck section of
located
between
of
more
to
deflect
in
excess
meter
to
immediately.
tube
is
spring-loaded
GIVE
socket.
It
this
test
is
defective.
Leakage
positions
from
one
due
to
than
lamp
may
9
this
elements
than 1 megohm
into
of
read
to
be
FURTHER
is
NOT
in
the
ripon
in
the
the
position
capacity
one
normally
just
to
button
of
the
1 megohm.
into
the
It
is
generally
tested
in
and
necessary
Switch
inserting
tube,
neon
Shorts
of
switch "D",
discharge.
pin
connection
the
tube
the
the
"Shorts-Reject"
TESTS
rotate
to
glow
tester
right
of
is
depressed. Shorts
tube
under
will be
Any
"Shorts-Reject"
desirable
order
to
will
show
return
TO
to
section. A
the
tube
the
indicator.
the
the
next,
This
for
in
certain
depress
a given ele-
the
test, will
indicated
area
tube
up
to
TUBES
check
into
"D"
tube
the
is
positions
by
de-
meter.
which
area
when
any
the
up
the
for
socket.
switch
If
the
should
Shorts
to
of
be
of
switch
normal
Before
position
Emission
The
leakage
testing
707
The
meter
grid
in
area
the
of
reveal
light
sync
the
fact
6BN8
"D",
tube
result
needle
current
this
a receiver,
usually
During
Short
inter
the
of
leakage.
a deflection
the
the
quality,
buzz.
leakage
tube
this
proper
Grid
ance
when
Model
the
cause
detected,
mally
Reject
condition
trouble.
using
indicates
tance
hundreds
stages,
cathode
be 1 megohm
produce
not
between
picture
and
cathode
to
the
even
if
will occur.
as
indicated
there
with
Short
proceeding
and
is
tested
for
when
the
tubes
either
Tube
Tester.
of
the
Gas
if
the
to
flow
is a
very
sensitive
should
of
the
scale
becomes
the
Gas
Lamp
as
element
Gas
and
tube
that
Grid
failures,
that a substantial
Grid
or
higher)
on
neon
SHORTS
grid
and
cathode.
twisting,
The
test
in
the
enough
conduct.
is
no
Tubes
the
on
Gas
Test
Grid
Grid
Emission
in
the
and
Grid
tube
is
gassy
and
since a current
be
discarded
during
progressively
Test
additional
the
indicator.
leakage
Emission
particularly
to
cathode
between
the
meter
lamp
bending
circuit
tube
under
current
Short
in
the
should
not
remainder
chart.
Emission,
Jet-Check section
test. A tube,
the
and
number
Grid
in
will flow
of
Gas
push
button
Emission
or
has a contaminated
if
the
Gas
and
worse
inter
A glow
is
cause
tests
cannot
those
used
were
leakage,
grid
during
as
would a low
to
cathode
pulling
Fig. 6
test
will
through
caused
and
the
of
illustrates
produce
the
or
the
test
as
although
meter
for
tube.
The
be
Content,
low
Grid
and
element
due
cathode
Gas
leakage
the
chart
rejected
for
tests
return
and
is
depressed.
or
in
the
will
be
observed
as 2 or 3 microamperes
it
may
reads
into
Emission
eventually
leakage
of
this
lamp
discarding
be
overstressed. Case
in
R.F.,
LF.,
to
gas,
grid
by a high
of
the
and
Grid
resistance
can
picture,
vertical
how
the
a deflection
the
5.6
megohm
will
these
the
"D"
extremely
This
Switch
as
grid.
These
seem
the
Grid
test
because
may
tests
during
the
tube.
and
Video
emission
resistance
tube
Emission
leak
be
the
jitter
presence
on
resistor
indicate
normal
switch
high
test
is
section
a deflection
conditions
to
operate
Emission-
a gassy
cause
serious
are
performed
the
Gas
The
histories
Amplifier
or
leak
under
test,
test
but
or
direct
source
of
or
bounce,
of
grid
the
meter
to
where
Shorts.
to
its
resist-
used
of
the
of
can
be
nor-
Test
impor-
of
grid
to
(can
will
will
short
poor
to
due
make
Quality
A
tube
Test 1 is
Emission
socket,
or
on
the
"Replace-?-Good"
be
replaced.
ton
must
A
tube
Emission
Then
Test 1 button
?-Good"
section
tube a second
and
test 1 button
sure
that
down
for
of
the
panel
You
scale.
This
Test
is
tested
depressed.
tests.
on
the
If
be
depressed
tested
test.
scale
of
the
Circuit
the
Switch
give
may
test a tube
is
normal
for
This
The
Sensitivity
chart.
the
tube
in
the
The
Sensitivity
is
the
meter.
depressed
Transfer
section. The
immediate
Gm
in
test
The
condition
scale
under
to
test
Switch
depressed
This
set-up
of
to
indications
whose
and
does
the
Jet-Check
is
made
if
Control
of
of
the
meter.
test
is a
the
second
section,
Control
to
indicate
test
is a Dyna-Jet
the
switches
read
the
switch
is
neon
indicators
quality
is so
not
indicate a defect
section
the
tube
is
set
the
tube
Any
multiple
section.
still
must
is
set
the
must
quality
UP
for
as
to
high
10
when
has
at
the
under
tube
section
first
at
the
point
quality
Emission
be
made
of
the
the
Jet-Check
located
which
section is active.
as
to
of
the
passed
value
test
not
tube,
pass
of
the
section
in
cause
the
instrument.
push
the
Shorts
listed
next
will
then
indicating
the
Test 2 push
the
Shorts
indicated
tube
on
test
.
according
being
section,
the
appropriate
the
meter
button
be
Good
in
the
If
it
to
tested.
and
to
marked
and
Grid
to
the
indicated
should
and
Grid
the
chart.
"Replace-
is a dual
the
chart
To
locked
section
read
test
but-
be
off
There
Good
will
40
Life
Life
proper
position
in a tube
detect
the
even
sufficient
drop,
space
me
is
Included
tubes
scribe
will
January, April,
du
is
available
the
are
area.
These
state
the
or
more.
Test
The
Life
Test
Test,
push
test
button
when
The
Life
Test
being
whether
The
heater
LIFE
TEST
rise
slightly)
reserve
the
tube
charge, a large
nt
is
warranted. A drop
reaching
ction
tested
The
Mod
in
and a wide
In
order
to
the
provjde
of
in
If
you
chart
Model
the
el 707
this
to
B & K
mailings
a new
your
do
not
and
some
tube
types
whose
Gm
is
so
types
minimum
switch
this
switch
is
depressed;
released.
will
help
tested. A tube
or
not
it
voltage
is
position.
under
to
continue
is
in
excellent
drop
end
of
its
are
read
reading
is
located
to
the
the
serviceman
may
is
in
the
reduced
The
the
to
condition. But
will
occur
of
25%
useful
for
since
reading
reduc
life.
on
the
a good
just
right
it
test
process
by a predetermined
ed
operate
in
of
low
0-120 scale.
tube. Exaruple: Tube
below
the
and
hold
is
spring
judge
how
O.K.
on
of
losing
on
the
meter
heater
voltage
normally
if
the
the
meter
the
normal
CHART SUBSCRIPTION SERVICE
Tube Tes
list
are
assortment
keep
chart
July
tube
B & K
wish
may
be
Serial
voltage
your
every
and
October.
type
Tube
to
use
obtained
Number
ter e
of
tube
chart
mailing
90
you
Tester.
this
of
nables
up
service
This
will mean
automatically
"4
times
any
time
your
instrument.
you
tubes,
to
at a cost
regulator
European
days. These
will
at
to
hybrid
tubes
used
date,
mailings are made
per
year"
by
remitting
that
The
pilot
lite.
the
switch
loaded
much
the
Gm
its Gm.
amount
will
.
If
the
tube
reading
meter
test
in
in
it
is
recommended
of $2.50
that
within
have
subscription
they
will
chart
listing
In
order
in
it
will
return
useful
test
but
when
drop
very
conditions
meter
under
test
indicating
reading
excess
of
auto
radio
modern
per
90
the
information
$1.50
to
not
read
for
good if
to
initiate
this
position
to
life
still
the
Life
the
switch
little
if
the
reading
has a depleted
that a replace-
indicates
2200
tube
tubes,
Hi
Fi
equipment.
that
year.
This
in
the
days
of
service,
the
factory
into
the
types
it
reads
while
its
normal
remains
test
will
is
(or
may
tube
does
the
tube
types.
thyratron
you
sub
service
months
the
intro-
on
how
the
latest
with
the
the
has
no1
in
-
of
it
All
No. 55
the
same
The
fuse
of
During
remain
Shorts
To
of
socket No.
Lamp
through
necessary
Pilot
Lamps
time
A.C.
line
the
same
the
in
the
UP
Sensitivity
adjust
Short
just
lights. R-16
the
center
voltage
under
with a No.
fuse
is
type.
following
or
Jet-Check
Adjustment
Lamp
1.
Adjust
of
socket
SERVICE INFORMATION
readings
55
located
adjustments
Sensitivity,
R-16,
is
accessible
the
No
type
are
Socket
only
on
position
while
30.
Remove
given
on
fails,
Panel.
button
a 1
button
resistor.
the
both
marked
meg. resistor
Panel
.
the
Socket
push
.
connect
Short
with a screwdriver
11
schematic.
lamps
Replace
"Circuit
is
depressed,
from
Short
light
must
only
from
the
should
If
either
be
replaced
with 1 amp.
Transfer"
pin 2 to
until
top
of
then
the
the
of
the
must
pin
Short
panel
go out.
at
4
Grid
Emission
The
sensitivity of
a
leakage
meter
mend,
to
for a
driver
resistor.
resistor
Signal
VTVM
of socket No.
R-20 is accessible
of socket No. 25.
D.C.
and
D.C.
of 25 megohms
scale.
in
order
To
adjust
pin
7 of socket No.
meter
from
Meter
If
you
wish
in
place
Voltage
To
calibrate
to
pin 1 of
Bias
To
adjust
pin 2 of
R-ll
is
This
not
the
reading
the
to
1.
Adjustment
for
socket
located beside
Sensitivity
the
order
to
reject
Grid
1.
of
top
of
reading
make
of
the
grid
emission
just
of
sensitivity is
good tubes.
Emission
Adjust
20
on
the
the
panel
should
the
Grid
20
meg
Adjustment
reads
Sensitivity,
R-1S, while
then
ohm
Adjustment
the
instrument
socket No. 1. Connect
Adjust
R-20 while
with
a screwdriver from
proper D.C.
No.1.
Bias.
Adjust
the
6BNS
test
circuit
in
the
"Grid
the
level
connect
numbered
through
Emission
for
R-ll
the
scale. R-1S is accessible
the
fall to zero
test
resistor
as
the
proper
the
test 1 button
the
connect a 20.000
while
test 1 button
tube
on
is
adjusted
Emission-Reject"
that
Grid
center
with
more
stated
signal voltage.
ground
is depressed. for 1.5 volts
top
of
ohm/volt
the
transformer
at
the
tube
manufacturers
a 20 meg. resistor
Emission
sensitive,
above.
the
button
of socket No. 33. Remove
nothing
plugged
use
a 100
of
the
panel
meter
is
depressed
connect
VTVM
through
bracket.
lead
factory so
area
on
from
is
depressed,
with
a screw-
into
meg
an
to
R.M.S.
the
between
for
-2.5
that
the
recom-
pin
panel.
ohm
A.C.
pin
center
pin
V.
1
2
1
Balance
socket
depressed)
transformer.
To
R-5
Control
adjust
No.1.
is
located
Adjustment
R-5. connect a 6000 ohm. 10
Set
for
Sensitivity
zero.
reading
on
the
rear
Control
on
tube
of
the
watt
to
100.
tester
meter.
transformer
resistor
Adjust
mounting
R-5
from
(while
just
pin 5 to
test 1 button
behind
the
pin 2 of
is
power
......
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TUBE TESTE R
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CO.
•
BLK
MFG
CO
MODEL
707
SOCKET
PANEL
SEC
T.
8
4 88-0~O-1I-001
B & K
Model
707
Parts
List
SCHEMATIC
SYMBOL
C·1
200
C·4
20
C-5
20
C-101 10
R-1
'IK
R-4
150
20
R-5
lK
R·6
R-7
150
R~8
Part
R-9
Part
R-ll
3K
R-16
2 Meg.,
50K
R-17
R-18
18K
R·20
10
R-21
16
R-22
16
R-101
4.7K
R·I02
4.7K
R-I06
470
R·108
1K
R-I09
2.4K
R-lll
lK
DESCRIPTION
MFD
@ 6.4V
MFD
@ 250V
MFD
@ 250V
MFD
@ 35V
Ohm 3 Watt
Ohm 4 Watt
Ohm
W.W.
Ohm 5 Watt
Sensitivity
Ohm 4 Watt
of
M-2,
of
M-3,
Ohm
W.W.
Y4
Ohm
113
Ohm 4 Watt
Ohm 5 Watt
Ohm 5 Watt
Ohm 5 Watt
Ohm 7 Watt
Ohm 7 Watt
Ohm 7 Watt
Ohm 7 Watt
Ohm 7 Watt
Ohm 7 watt
CAPACITORS
Pigtail
Pigtail
Pigtail
Pigtail
Electrolytic
Electrolytic
Electrolytic
Electrolytic
Cap
Cap
Cap
Cap
..........
..........
............
RESISTORS-CONTROLS
10%
Glass
Res
...................
Res
...................
Adj.
(Internal)
Pot.
(Spec.
Res
...................
separately.
separately.
Bias
Adj.
Sensitivity)
Sensitivity
Resistor
....................
Res
....................
Res
....................
Res
..................
Res
..................
Res
...................
Res
...................
Res
.................
Res
...................
Taper)
(Internal)
.............
..........................
(Short
(Gas
Glass
Glass
..........
. . . . . . . . . .
. . . . . . . . . .
Adj,l
Pot.,
ControL
not
not
Rheostat,
Watt
Watt
Pot.
5%
5%
5%
Glass
Bal.
W.W.
5%
Glass
available
available
Pot.,
Pot.
10%
(Signal)
W.W.
W.W.
5%
Glass
5%
Glass
5%
Glass
5%
Glass
5%
5%
Glass
B & K
.
PART
No.
...... ; .022·001·9·007
....
.......
....
021·003·9·005
021·003·9·005
022·026·9·001
003·003·6·102
003·004·5·151
008·038·9·001
009·001·9·002
003·004·5·151
..
-
..
009·017·9·001
008·027·9·001
008·012·9·001
003·004·6·183
009·001·9·001
006·005·5·160
006·005·5·160
003·007·5·472
003·007·5·472
003·007·5·471
003-007-5-102
003·007·5·242
003-007-5-102
SW-l
SW-2
SW
-3
SW
-4
SW
-5
SW-6
SW-7
SW-!l
"On-Off"
"Life
"Heater"
"D"
"c"
"B"
"A"
"Push-Button
Slide
Test"
Switch
Selector
Selector
Selector
Selector
SWITCHES
Switch
Slide
Switch
Switch
Switch
Switch
..........................
Switch,
...............................
............................
............................
............................
............................
Function"
Spring
Switch
Loaded
..........
.................
084·001·9·001
091·003·9·001
083·038·9·001
083·030·9·001
083-035-9-001
083·027·9·001
083·035-9·001
083·028.9·001
SCHEMATIC
SYMBOL
F-1
· 1
M-1
M-2
M-3
M-4
M-5
M-6
T-1
V-I
Amp.
Meter
ME12
NE-2
Circuit
NE-2
Circuit
NE-51
No. 55
No.
Power
No.
V-2 6BN8
Adaptor
7
Pin
Octal
9
Pin
Novar
Loctal
lD
Pin Decal
10
Pin
12
Pin
Nuvistor
Fuse
Ferrite
Line
7
Pin
9
Pin
Banana
Plate
Knob w/Skirt
Push
Knob,
Carrying
Socket F/Shorts
Bushing
(includes
Clear
Red
Line
Cart
Instruction
Tube
DESCRIPTION
MISCELLANEOUS
Slo-Blo
Fuse
(Indicate
Neon
Neon
"Shorts"
Bulb,
55
Bulb,
Transformer ....
83
Rectifier
Tube
Test
Test
Test
Test
Test
Test
Compactron
Holder
Core
Cord
Tube
Tube
Cap
Button
w/White
Lens
Lens
Cord
on
Chart
all
on
meter
face)
Bulb,
with
Transfer
Bulb,
with
Transfer
Bulb
"Voltage
"Voltage
Tube
. . .... .
Plate
. .
.....
Socket ........
Socket
..................
Socket
.............
Socket
Socket
Tube
Socket
Test
Socket
.................
.........................
Strain
Relief .... ...
Straightener
Straightener ..............
Jack ...
.....................
Assembly . ....
...............................
Knob
Line ............. _ ......... _ ..
Case
.......
Lamp
F/Shorts
Lamp
Nut
692-001-9-001)
cap ................
Cap
.........
...................•.................
and
Fillers
Book
..............................
................ _ ..................
...
......
numbers & letters
........................
Resistor
Indicator ......
Resistor
Indicator
....................
............
. .............
Control"
Control"
and
and
................
........•......
...
. "
..............
" .
....
.. ..
....
. .
................
...
................
.....
. . .
Socket
..............
........
. . .......
.
..............
"Pilot
"Pilot
. .
........
. _
.....
following
.....
Light"
Light"
..
.....
...... .....
. . .
......
.............
. . .
........
. . .
..
...........
.
......
....... _ ....
....
.....................•.......
Socket
....
. . . .
........... _ ..
...........................
.
....
_ . _ ... _
....
__
. _
. . .
...............
....
......................
. . .
.......
_. _
.......
......................
............................
. . .
...............•
Ass'y ......
Ass'y
..... _ .. _ ...... _ ..
..
......................
(503-0lD-9-001)
.
.......
.•.........•..
...........
....
. . . . . .
. . _ . 750-001-9-002
...
B & K
PART
No.
190-121-3-001
320-004-9-002
401-001-9-002
401-001-9-002
401-002-9-002
..
400-012-9-001
..
400-012-9-001
. 065-002-9-001
. 232-001-9-001
235-060-2-148
251-295-9-902
. 749-002-9-007
. 749-002-9-001
749-002-9-002
749-025-9-001
749-014-9-001
749-033-9-001
749-002-9-003
749-024-9-001
749-015-9-001
. . 742-001-9-001
_ . 870-002-9-001
380-001-9-002
. . 766-004-9-001
766-005-9-001
774-001-9-002
.
ASMB-1oo
. . 751-028-9-001
. 751-018-9-001
. 751-0lD-9-001
270-003-9-002
749-005-9-001
849-007-9-001
753-005-9-001
420-001-9-007
..
500-115-9-001
480-065-9-001
497-014-0-000
Minimum
previous
panies
Specify
48S-0!So-9-00fC
open
order.
serial
Note: Standard
Values
charge
$2.00
account
Advance
number when
3·68
value
may
be
per
arrangements
remittance
R R
PRESS
capitators
ob_
,ained
invoice.
must
ordering
and
resistors
are
be
made
postage
parts.
nof
shipped
or
or
from schematic diagram.
Orders
will
have
been
cover
replacement
listed
.
C.O.
remittance
express.
D.
unless
accom-
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