Tektronix T921 User Manual

Operating Instructions-T921/T922/T922R
2-2
POWER-Indicator lamp lights when
ON-OFF but-
ton is
depressed to ON (in) position and
applied
power input voltage
does not vary more than about
10% from thevalue indicated
by the 120 V/240 V and
HI/LO voltage selector
switch settings . When
applied power input voltage varies
more than about
10% (either high or low) from the
selected value, the
lamp will blink .
(In someversionsthis lamp is
labeled
ON .)
O Internal graticule-Eliminates
parallax . Risetime
amplitude and measurement points are indicated at
the left edge of the graticule .
Fig . 2-1 . Display front panel controls and connectors .
Rear Panel
(Fig . 2-2)
Left Side of
Cabinet-T921/T922 only (See Fig . 2-3)
O
ASTIG-Screwdriver adjustment used with FOCUS
control to obtain a well-defined display . Requires
little or no adjustment once
set .
EXT
Z AXIS INPUT-BNC connector for applying
signals to intensity modulate the crt display . Signals
'must be time-related to the display for a stable
display .
TR ROT-Trace rotation
screwdriver adjustment .
Aligns
trace
with the horizontal graticule lines .
REV . A, JUNE 1976

Tektronix T921 Specifications

General

Brand	Tektronix
Model	T921
Category	Test Equipment
Language	English