Tektronix 475 User Manual

Operating Information—475
20 MHz BW/
TRIG VIEW
INVERT
VERT MODE
DC: All components of the input
signal are passed to the Vertical
Amplifier.
Dual-purpose switch that limits the
bandwidth of the complete Vertical
Deflection System to approxi
mately 20 MHz when pulled out, or
causes signal present in A Trigger
Generator circuit to be displayed SOURCE
on the CRT when pressed.
Pushbutton switch that inverts the
Channel 2 display.
Selects the vertical mode of opera
tion.
CH 1: Displays Channel 1 only.
ALT: Dual-trace display of signals
on both channels. Display is
switched between channels at
the end of each sweep.
ADD: Signals applied to the CH 1
OR X and the CH 2 OR Y
connectors are algebraically
added and the sum is displayed
on the CRT. The INVERT
switch in Channel 2 allows the
display to be CH 1 + CH 2 or CH
1 - CH 2.
CHOP: Dual-trace display of sig
nals on both channels. Display is
switched between channels at an
approximate repetition rate of 1
megahertz.
CH 2 OR X-Y: Displays Channel 2
only. Must be pushed when
operating in X-Y mode.
A and B Triggering (both where applicable)
COUPLING Determines the method used to
couple signal to input of trigger
circuits.
AC: Rejects DC and attenuates sig
nals below about 60 Hz. Accepts
signals above about 60 Hz.
LF REJ: Rejects DC and attenu
ates signals below about 50 kHz. LEVEL
Accepts signals above about
50 kHz.
HF REJ: Accepts signals between
60 Hz and 50 kHz. Rejects DC
and attenuates all signals outside
the above range.
DC: Accepts all trigger signals
between DC and 200 MHz or
greater.
Selects source of trigger signal.
NO R M : Internal trigger signal
obtained from Vertical Deflec
tion System. Actual source is
signal(s) displayed on CRT.
CH 1: A sample of the signal
connected to the CH 1 OR X
input connector is used as a
trigger signal.
CH 2: A sample of the signal
connected to the CH 2 OR Y
input connector is used as a
trigger signal.
EXT: Trigger signal obtained from
signal connected to the External
Trigger Input connector.
E X T -M 0 (A trigger circuit
only): External trigger signal
attenuated by a factor of 10.
STARTS AFTER DELAY (B
trigger circuit only): B sweep
starts immediately after the
delay time selected by the
DELAY-TIME POSITION dial
and the DELAY-TIME switch.
LINE (A trigger circuit only): Trig
ger signal obtained from a
sample of the line voltage
applied to the instrument.
Selects the slope of the trigger
signal which starts the sweep.
+: Sweep can be triggered from the
positive-going portion of the
trigger signal.
—: Sweep can be triggered from
the negative-going portion of the
^rigger signal.
Selects the amplitude point on the
trigger signal at which the sweep is
triggered.
2-4
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Tektronix 475 Specifications

General

Brand	Tektronix
Model	475
Category	Test Equipment
Language	English