Fisher X-100 - Schematic Diagram

[tnr
rtsnrn
X-]00
was designed
to
provide
maximum
circuit
flexi-
I
bitity
with operational
simplicity at
moderate
cost, while
main-
taining
the
Laboratory
Standards that distinguish all FISHER
components. This
has
been
achieved on a single
superbly engineered
chassis
combining
a
stereophonic Preamplifier-Equalizer
and Tone
Control
circuit,
a dual-channel
40-watt
Power
Amplifier, and
a self
contained
Power
Supply.
With
the
addition o{
two appropriate loud-
speakers,
or
speaker
systems
(such
as the FISHER
XP-l), the
X-100
will
perform
as a
stereophonic
sound
system of the
highest
quality.
The
preamplifier
section
contains
14
input
jacks
to
which may
be
connected
eyery
type
of monophonic
or
stereophonic cartridge,
tape
recorder
and
tuner on
the market,
Located
on the
front
panel
are 16
controls
and
switches
which
permit
the
selection of
any
program
source for
either
monophonic
or stereophonic
operation,
and the
adjustment
of
volume,
balance,
and
tonal characteristics
through
every
nuance
of the
audio spectrum.
Advanced
electronic
circuitry,
and the
careful
selection
o{
parts,
reduce
hum,
noise
and distortion
below
the
threshold
o{ audibility.
The
power
amplifier
section,
equipped
with
matched pairs
o{ EL84's,
has
excellent
overload
characteristics
and
a
very
short
recovery
time, resulting
in
performance
that is
superior
to
amplifiers
with
a higher
power
rating.
A
switch-controlled
Center
THE
FISHER X.IOO
STEREOPHONIC
Mosfer
Control Amplifier
Channel output
jack
is
included to
which a third amplifier and
loud-
speaker may be connected
to augment
the
stereophonic sound
pattern.
Once
you
have operated
the X-100,
you
will realize
why
FISHER
produets
have achieved
a world-wide
reputation. The
guality
under-
Iining
this reputation
will assure
you
of
years
of
trouble-free operation
and unsurpassed
listening
pleasure.
A
NOTE
ON
STEREOPHONIC
SOUND
[lnn
onveropurur
of
stereophonic
sound
has brought
us close
to
I
achieving "Concert
Hall"
realism in the home.
This dual"channel
system ofiers
a distinct
advantage over monophonic
(single-channel)
systems by
virtue of two
important
audio characteristics: the
dimen-
sions of d.irection
and depth.
These
live sound
qualities
are
for
the
most
part
missing
in monophonic
systems because recordings
are
made
and reproduced
over
a
single
channel.
This is
somewhat
analogous to
listening to
music
with one ear.
Stereophonic
recording techniques,
however,
utilize two
separate banks
of
microphones
which are
posi-
tioned
at
the
le{t
and right
sections of the
orchestra.
In
this
arrange-
ment, the
microphones
receive
the musical
sounds in much the
same
manner
as the two
ears
of a listener.
The
sound
picked
up by
each