Tektronix 454A Operator's Handbook

INT TRIGGER
ADD : Signals applied to the IN PUT
CH .l and INPUT CH 2 connec-
tors are algebraically added and
the algebraic 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.
(Internal Trigger) Selects source of
internal triggering signal from verti-
cal system. Also selects
the source
of the X signal for X-V mode opera-
tion.
NORM: Sweep circuits triggered
from displayed channel(s). Chan-
nel 1 signal available
at CH 1
OUT connector.
CH 1 ONLY OR X-V: Sweep cir-
cuits triggered :only from the sig-
nal
applied to the INPUT CH 1
connector. No signal available at
CH 1 OUT connector. CH 1
lights, located beside A
and B
SOU RCE switches, indicate that
the INT TRIGGER switch is in
the CH 1 ONLY ORX-Y position.
454A
LEVEL
HF STAB (A Trigger-
ing Only)
SLOPE
For X-V mode operation: Chan-
nel 1 signal
isconmictedtQ'ithe
Horizontal Amplifier. '
INVERT
(CH 2 only)
Inverts the Channel 2 display when
pulled out.
A and B Triggering (both where applicable)
Selects amplitude point on trigger
signal at which sweep is triggered.
(H igh Frequency Stability) De-
. creases display jitter for trigger sig-
n~ls above about 40 megahertz. Has
negligible
effect at lower repetition
rates.
Selects slope of trigger signal which
starts the sweep.
+: . Sweep can be triggered from
positive-going portion of trigger
signal.
-: Sweep can be triggered from
negative-going portion of trigger
signal.
7

Tektronix 454A Specifications

General

Brand	Tektronix
Model	454A
Category	Test Equipment
Language	English