BWD MINI-LAB 603B Manual page 7

2.
PERFORMANCE
(continued)
2.21
F.M.
Modulation
at
Line
Frequency
(2.7 with 2.18)
Linked
as for
A.M.
but
to
F.M.
socket with a
39KQ
resistor,
sine, square
or triangle will
be swept
over-
a
decade
range of calibrated
dial
frequency.
2.22 Swept Output
(2.7 with 2.8)
The function generator output
may
be swept over
the entire
2 decade range
of the
dial
on any range
or
down
to
<10%
of
any
portion of the
dial.
2.23 High
Sensitivity
Power Amplifier
(2.11 with 2.14)
With operational amplifier linked
to
power
amplifier.
Output;
As
for
power
amplifier specification.
Voltage gain;
Continuously variable from
xlO
to
xlOOO.
Frequency
response;
DC
to
>
20kHz.
2.24 Function
Generator
Op Amp
Link (2.1
with 2.14)
Push-pull signals;
With generator output linked
to
inverting input
a
signal
180°
out of phase with the generator
is
obtained at
frequencies up
to
80kHz.
±
Pulse output;
Sharp
pulses
to
>100kHz can be
generated by over-
driving the
op-amp
with
offset
triangular waveforms.
Rise
time
is
controlled
by degree of overdrive
and
op-amp
gain.
Other waveforms
such as half
sine, log curves,
truncated triangular
and complex shapes of almost
infinite
variety
can be obtained by combining
the
wide range
of
facilities
provided.
2.25
Power
Supply;
+
45 volt
1
amp (2.12 with 2.16)
By
linking the
-15
volt
output
to
the bipolar output, output voltages
to
+45
volts
can be
set.
By connecting
the
+15
volt
output
to
the bi-polar supply
voltages
to
-45
volts
can be
set.
2.26 Modulated Power
Supply.
±
45 volt
1
amp
(2.1
and 2.11 with 2.16)
If
the bipolar supply
is
switched
to
power
amplifier
and
its
input linked
to
the function generator the low voltage supply
can
rise
on
top of the
amplifier output
at
low
frequencies
to
provide
for
example,
simulated
power
line ripple.
2.27 Other
facilities.
The generation
of
complex waveforms and
many, experiments
and measurements
are described
in
the applications section (Section
5)
of
this
manual.
General
Details;
2.28 Power
requirements;
l90^°o^265'^vo?ts
)
- 60Hz,
By
switch selection
(rear
panel).
2.29
Finish; Light
coloured panels and sage green
vinyl
coated
aluminium covers
with anodised aluminium
surrounds.
2.30
Warranty;
The
instrument
is
guaranteed
for
a period of twelve
(12)
months
against faulty materials
and workmanship.
2.31
Dimensions;
420mm
(I62")
wide x
200mm
(8")
high
x
260mm
(10-1/4") deep.
Overall knobs,
etc.
2-4
603B