BWD MINI-LAB 603B Manual page 12

3.
CONTROLS
AND
THEIR
FUNCTIONS
(continued)
3.4
Signal
Source Controls (Cont'd)
14.
Ramp
Output: 0
to
+10V
Linear
Ramp
is
available at
an
output
impedance
of 600Q.
3.5 Amplifier Section
Controls:
15.
Power Amp/Bi-Polar/
Position of
this
switch provides the
user with
either
+5V
Power Supply a Power Amplifier
or
a variable
+15V
to
-15V
Switch:
Supply or a fixed
+5V
Supply.
16.
Voltage
Control /bi-
polar
Power
Supply:
With the Bi-Polar Supply
in
operation, rotation of
this
control
changes
the
output voltage over
a
± 15V
range
as
indicated on
the front panel.
17.
Power
Amplifier Input
These
terminals
accept
input signals
for
the
Terminals:
Power
Amplifier.
When
not
in
use, the
blue
terminal
becomes open
circuit.
18.
Power Amp/Bi-Polar/ The output
of either the
Power Amplifier
or
+5V Power
Supply the
Power
Supplies appears here.
Output
Terminals:
19.
Voltage/Operational
Amplifier Input
Terminals:
An
Inverting (-ve)
and
a Non-Inverting
(+ve)
input
is
provided
for
both
functions
of the
amplifier.
20.
Voltage/Operational
Amplifier
Output
Terminal:
The output
of
either
the
Voltage
Amp.,
or the
Operational
Amp.
is
available here.
21.
Voltage
Amplifier
Varies the gain from
1
(Odb) to
100 (40db).
Gain
Control:
When
turned
maximum anti-clockwise, the feed-
back
networks are
removed
converting the
amplifier
to
an Operational Amplifier.
3.6
Power Supply
Section Controls
:
22. -1 -15V Voltage
Control:
Rotation of
this
control
provides a continuously
variable output voltage from approx.
-
1
to
-15V
from the:-
23.
-1*'-15V Output
Terminal:
The required load
is
connected between
this
terminal
and the
OV
terminal
which
is
the
common
return to the:-
24.
+1^+15V
Output
Terminal
25.
+1^+15V
Voltage
Provides a continuously variable output voltage
Control: from approx. +1 to
+15V.
603B
3-3