Lafayette TE-50 - Page 2

ER eee
The
Lafayette
Model
TE-50
is
a
modern
and
compact
Tube
Tester
designed
to
provide
speedy
yet
efficient
operation.
The
Model
TE-50
will
test
tube
types
used
in
Radio,
Hi-Fi,
Monochrome,
color
TV, etc., for quality
of emission
and inter-electrode
shorts.
Sockets
and
circuits
have
been
provided
for
testing
the
new
Noval
and
Sub-Minar
types
in
addition
to the
Octal,
Loctal
and
7-pin
miniature
types,
as
well
as
new
9- and
12-pin
Compactron
tubes
and
Nuvistor
tubes.
The
socket
for
Noval
can
take
a 10-pin
tube
of this
type.
Before
attempting
to use
the
tester,
we
suggest
you
read
the
operating
instructions
contained
in this
manual
in order
to acquire
a proper
understanding
of how
this
unit
works.
DESCRIPTION
OF
SWITCHES
AND
CONTROLS
TUBE SOCKETS
Eight
sockets
are
provided—Octal—Loctal-9
pin
Noval—-7
pin
miniature—8
pin
sub-minar,
9
and
12
pin
Compactron
and
Nuvistor
tubes.
Be
sure
to
insert
the
tube
in
the
correct
socket
in
all
cases.
TOP CAP LEAD
This
lead,
supplied
as
the
integral
part
of
TE-50,
is
provided
for
connection
to
tubes
having
a
top
“cap
and
for
insertion
into
the
jack
marked
“T.C.”.
If
the
tube
under
test
does
not
have
a
top
cap,
take
care
not
to
allow
the
lead
to
touch
any
metal
part
of
the
tester.
ELEMENTAL
SLIDE
SWITCHES
These
switches
are
used
to
connect
the
various
tube
elements
to
their.
respective
test
circuits.
The
switches
are
numbered
from
1
to
12
and
correspond
with
the
RMA
basing
of
the
tube.
The
letters
F,
N,
P
and
K
provide
the
following
functions:
F--(Filament)
When
any
element
is
switched
to
this
position,
the
voltage
selected
by
the
filament
voltage
switch
is
applied
between
this
element
and
all
other
elements
left
in
the
“K”
position.
N—(Neutral)
When
any
element
is
switched
to
this
position,
it
is
isolated
from
all
other
elements
in the tube. It can be used, for example, to isolate a tapped filament from all other elements
during
a
tube
test.