Heathkit W-5M User Manual

INTERMODULATION
DISTORTION:
Intermodulation
distortion
curves
for three
separate
test
conditions
are
plotted
in Figure
5
.
Please
observe
that,
again,
the
generally accepted
limits
for
"extremely
high
fidelity"
amplifiers
and
"high
fidelity
amplifiers"
have
been
added
to
the graph. The
W-5M
amplifier
will supply
over
20
watts
of
power
under
any
one
of
the
three test
conditions
before
its
intermodulation
dis-
tortion
exceeds
the
"extremely high
fidelity" requirements.
HEATHKITW-5M
POWER OUTPUT
(
EQUIVALENT
SINGLE
FREQUENCY
POWER
IN
WATTS
)
PHASE
SHIFT:
Figure
5
See
Figure
6
below, which
is
self-explanatory.
1CPS
10 CPS
(00
CPS
IKC
10
KC
100 KC IMC
HEATHKITW-5M
PHASE SHIFT
Figure
6
A phase
shift of
75°
occurs
at 1.2
cps.
It
was
impossible
to locate
the
90°
leading
point, since
it
occurs below
the
pass-band
of
the amplifier. Note
also that
the phase
shift
occurs
gradually
throughout
the
frequency
range, rather than quite
abruptly
as
is
generally true
of
amplifiers
with
heavy feedback. This
contributes
further
to
the stability of the
amplifier.
Page
5

Heathkit W-5M Specifications

General

Brand	Heathkit
Model	W-5M
Category	Amplifier
Language	English