Hickok 6000A - Page 6

INSTRUCTIONS
FOR
MODIFICATION
OF
TUBE
TESTER
MODEL
60004
(from
115
volts
a.
c.
to
230
volts
a.
c.
operation)
The
Model
6000A
Tube
Tester
is
designed
to
operate
on
either
115
volts
or
230
volts.
It
is
shipped
from
the
factory
to
operate
on
115
volts.
If
230
volt
operation
is
desired,
it
is
necessary
to
change
the
wiringof
the
power
transformer
from
a
parallel
hook-up
to
a
series
hook-up.
For
parallel
and
series
hook-ups,
see
the
schematic
wiring
diagram
in
the
rear
of
this
manual.
For
modification
of
the
Model
6000A,
from
115
volts
to
230
volts,
proceed
as
follows:
a.
POWER
TRANSFORMER
(1)
Disconnect
the
black
wire
which
is
connected
to
the
lug
marked
(W)
and
disconnect
the
white-black
wire
which
is
connected
to
the
lug
marked
(X).
Both
located
on
transformer.
(2)
Splice
together
and
solder
the
two
above
wires.
Insulate
connection
with
electrical
insulating
tape.
(3)
Do
not
disturb
the
other
wires
which
are
connected
to
the
lugs
marked
(W)
and
(X).
Inspect
(W)
and
(X)
for
good
electrical
connec-
tions.
b. LINE FUSE
(1)
Replace
the
Хо.
81
fuse
lamp
with
a
No.
63
lamp.
c.
CALIBRATION
CHECK
Plug
the
Model
6000A
into
a
230
v.a.c.
power
source,
and
turn
the
LINE
ADJUST
to
the
ON
position.
The
meter
needle
will
deflect
up-
scale
to
the
area
marked
LINE
TEST.
No
further
calibration
is
neces-
sary.
d.
For
modification
of
the
Model
6000A
from
230
volts
to
115
volts,
reverse
the
above
procedure.
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