Tektronix 485 Operator's Handbook Manual page 6

: ae
"BEAM |
FINDER j
9. 20 MHz Indicator
Lights when bandwidth of vertical amplifier is being limited.
. BW LIMIT Pushbutton
Limits to approximately 20 MHz the bandwidth of the
complete vertical amplifier system and of the INTernal
TRIGger signal.
. BEAM FINDER Pushbutton
Compresses trace within graticule area independent of position
control settings or amplitude of signal applied.
- A AND B TIME/DIV AND DELAY TIME Switch
Selects calibrated A and B sweep rates from .5 s/div to 1 ns/div
Operating Instructions—485 Operators
VARIABLE (CAL IN}
A ann 8
TIME/DIV
AND DELAY TIME
TRACE
SEPARATION (B)
HORIZDISPLAY _
[DELAY
Le] Le : |
A ONLY WHEN ——
CH 2 POLARITY KNOBS LOCKED .
GAIN NORM A TRIGGER
; i. HOLDOFF
INVERT ak
tae ane
in 27 steps (1-2-5 sequence). Delay Time operation extends
from .5 s/div to 10 ns/div.
A VARIABLE Control
Provides continuously variable A sweep rate to approximately
2.5 times the calibrated setting (uncalibrated sweep rate is
extended to 1.25 s/div). Push away control provides calibrated
rate in the CAL IN position.
DLY'D SWEEP PULL Knob
Provides for advancing the B (DLY'D) sweep rate ahead of the
A (DELAYING) sweep rate. (When A rate is 1, 2, or 5 ns/div
knobs are locked together).