Display And Storage - Tektronix 466 Instruction Manual

DISPLAY AND STORAGE
11. INTERNAL GRATICULE — Eliminates parallax.
Risetime amplitude and measurement points are indicated
at the left-hand graticule edge.
12. BEAM FIND — Compresses the display to within
the graticule area independently of display position or
applied signals and provides a visible viewing level.
13. INTEN — Controls brightness of the crt display.
14. REDUCED SCAN (PULL — INTEN knob) —
Reduces display to "inner'' graticule with an increase in
writing rate. 466 only.
15. REDUCED SCAN LAMP — Indicates that the
REDUCED SCAN mode is in operation. 466 only.
16. ASTIG — Used in conjunction with the FOCUS
control to obtain a well-defined display. It does not require
readjustment in normal use.
17. FOCUS — Adjusts for optimum display definition.
18. TRACE ROTATION — Adjusts trace to align with
the horizontal graticule lines.
19. SCALE ILLUM — Controls graticule illumination.
20. STORAGE LEVEL — Varies the writing rate of the
crt in the FAST and VAR PERS storage modes.
21. SAVE — Provides longer viewing time. It prevents
accidental erasure of the stored display.
22. SAVE INTEN — Varies the intensity of the SAVE
mode.
23. NON STORE — Allows operation of the instrument
as a conventional oscilloscope in the NON-STORE mode.
24. VAR PERS — Permits variable retention of the
stored display.
25. FAST — Used for fast-writing displays. FAST mode
disables the TRIG MODE switch. It automatically se-
quences an erase cycle, unless the VIEW TIME control is in
the full clockwise detent (manual). It waits a time period
determined by the VIEW TIME control, then resets the
sweep in a single-sweep mode.
26. VIEW TIME — Varies the retention time (persis-
tence) of the stored display in the VAR PERS mode. It
varies the time between erase cycles in FAST mode.
27. ERASE — Erases the stored display, except in
SAVE mode when ERASE is disabled.