Circuit
Description
—
Type
575
V143A
Cathode
t 150
F 50
-‘
1.5
V172B
Cathode
2.4
1
V171
Grid
1.5
-1.9
r
54
V163A
Cathode
6
40
46
V143B
Cathode
74
0
5
V155B
Plate
25
2
V152B
Plate
7
Fig.
3-7.
Time relationships between
the
Step
Generator
output
waveforms (D)
and
waveforms
at
key
points
in
the
step
generator
section.
Fig.
3-9
(a)
is
a
diagram
of
a
transistor operating
as
an
emitter
follower.
Fig.
3-9
(b)
is
the
vacuum-tube
equivalent
of
the
same
circuit.
Note
that in both
cases
the output
signal
is
in
phase with
the
input
signal.
The
average
value
of
the
output
voltage may
be
set
to
zero
by
proper
biasing
of
the
input.
Fig.
3-10
shows
how
an
out-of-phase
signal
centered
around
ground
can be obtained
with
the
same
general
configuration.
Note
that
only
the
ground
point
has
been moved.
The tran
sistor is
no
longer
operating
as
an
emitter
follower,
but
as
an
ordinary
voltage
amplifier.
The
100-ohm
resistor
is
now
the
collector
load
resistor.
The
approximate
positive
and
negative
limits
of
the
no-
load
output
voltage
of
Fig.
3-10
can
be
determined
by
con
sidering
the
transistor
as
a
switch
which
is
either
opened
or
closed.
When
the
switch
is
closed (emitter
and
collector
shorted),
the
output voltage
must
be
+15
volts.
When
the
3-7
Summary of Contents for 175
Page 4: ...VWTICM OINltAlO TRANSISTOR CUM TRACfR UB l COUlClO r hokizoniai VCKIJ O lUnK Hix M Type 575 z ...
Page 6: ...NOTES ...
Page 26: ...NOTES ...
Page 48: ...NOTES ...
Page 54: ...Recalibration Type 575 C706 Fig 5 3 Left Side View 5 6 ...
Page 56: ...NOTES ...
Page 100: ...INPUT AMPLIF1E ...
Page 104: ...TYPE 575 TRANSISTOR CURVE TRACER ...
Page 108: ...OSCILLATOR 4OOV UNREG TYPE 575 TRAN5I5TOR CURVE TRACER AB ...
Page 115: ... 300 ...
Page 119: ...Type 175 Tent S N 570 PARTS LIST CORRECTION Change to Q233 151 0137 00 2N21U8 MIO 298 1165 ...