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EyggD st«o
OUTPUT CONNECTIONS
TAPE RECORDER
The
TAPE
OUT
l
&
TAPE
OUT
2 iacks are
Intended
for
feeding
signals
out
to
the "line" recording inputs
of a
tape recorder. These are
Independent
outpi
s
for
channel
1
and channel
2,
respectively.
They
are
un-
affected
by
the
LEVEL,
BALANCE,
BASS, TREBLE,
HI
FILTER,
and
LO
FILTER
controls.
SPEAKER CONNECTIONS
WARNING:
Do
notoperatetheamplifierwithout
first
connecting speakers
to
the speaker
connection
termi-
nals,
exactly as described below.
Every speaker has
a rated
impedance, which
may
be
16, 8,
or
4
ohms.
For
an
amplifier
to
provide
rated
power
output with rated
distortion,
the
speaker used
with
it
must
be
connected
to the
output transformer tap
corresponding
to
its
impedance.
On
the
rear
apron
of the
unit,
there are three
4-con-
nection Terminal Boards
(TB).
Silk-screened on
the
apron
is
a
diagram
for
connecting
upto
three speakers;
one each
for
channels
land
2,
and
an.
optional center
channel speaker.
To agree with
the established
conventions
of stereo,
connect
the
left
speaker
to
the
channel
1
output,
and
the
right
speaker
to
the
Channel
2output,
after
read-
ing
the
connection
information
below.
The boardat
the
left,
TB1,
carries
the
impedance
taps
for
channel
1.
The
board
at the
lower
right,
TB3,
carries
the
impedance
taps
for
channel
2.
SPEAKER TERMINALS
FIG.
I
PAGE
5
The
left
board,
TB1, carrying
the
channel
1
impedance
taos
(16, 8,4£)1.
also includes the
common
terminal
('..<
for
channel
1.
The channel
1
speaker
is
connected
to
this
common
terminal
C
and
the appropriate
channel
1
imp,
dan
se tap, as
shown.
The
lower
right
board, TB3, carrying the
channel
2
impedancetaps(16,8,4Q),
does
not carry the
common
-
terminal
C
for
channel
2,
in
fact,
the
channel
2
speaker
Is
npt
to
be
directly
connected
to this
board
atall.
The upper
right
board, TB2, provides the
con-
nection
terminals
for
the
channel
2 speaker.
As
the
diagram
shows, the
channel 2speaker
is
to
be connect-
ed between
the
right-hand
pair
of
terminals
on board
TB2.
Note
that
the terminal
at
the
extreme
right
Is
marked
"C", thisbeingthe
common
terminal
for
chan-
nel
2.
To complete
the
connection
of the
channel 2speaker,
T
jumper wire must be connected between
the
third
terminal
from the
right
on
the
upper
right
board, TB2,
and
the appropriate
impedance
tap
on
the
lower rigm
board, TB3,
as
shown
in
the diagra
rru
There
is
a
third
speaker
shown
in
the diagram, labelled
CENTER
5PKR.
(OPTIONAL).
Aresistance symbol
is
shown
inserieswith
this
speaker, as well.
This
resist-
ance
symbol
stands
for
an attenuator
to
reduce
th-
•
vel
of the center
speaker appreciably
below
that of the
channel
land
2speakers
so
asto produce
"eenterfill"
without
markedly
diminishing the
stereo
effect.
For
this
purpose
we
recommend
an
adjustable
50 ohm,
25
watt wi
re
-wound
dropping
resistor
suchastKe Obmite
''Dividohm
1
','
mounted on
the
rear
panel
of
the center
chameT
speaker adjacent
to
the
speaker
terminals.
Connect
the sliding
divider
on
the
resistor
to
one
of the
speakerterminals, allowing
enough
slack
to
permit
the
slider to
be
moved
along
the
body
of the
resistor.
Now
connect
the other
speakerterminal
to
the
extreme
left-
hand
terminal
on
the
upper
right
board,
TB2,
on
the
amplifier,
and
then
connect one end
terminal of
the.
dividing resistortothe
same impedance
tap
on
the
left
board, TB1,
used
for
the
channel
1
speaker.
These
connections are shown
in
the
diagram*
The speaker connection diagram
si
Ik-screened
on
to
the
rear
apron
of the amplifier
is
reproduced
in
Fig.
k
with additional
polarity Indications
which
will
assist in
phasing the speakers properly
if
your
speakers are
mark-
ed
as
to polarity*
A
physical representation
of
the
speaker connections
Is
glvOTi
inFIg.
2*
if
your speakers
are not
marked
as to polarity,
use
the phasing
method
given below.
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