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Type 585A
SECTION
J
CHARACTERISTICS
Introduction
The Type 585A Oscilloscope is a laboratory instrument
designed to operate with the 80 series Plug-In Units. The
Type 81 or Type 81 A Adapter equips the oscilloscope to
accept any Tektronix Letter or 1 Series Plug-In Units.
The instrument will perform to specifications in a labora-
tory
environment
with
an
ambient
temperature
range
between 0° C and 50° C except as indicated.
Warm-up
time for rated accuracies at +25° C -+-5° C is 20 minutes.
Adequate ventilation must be maintained and a minimum of
two inches clearance around the instrument is recommended.
Characteristics
Frequency Response
(Bandwidth)
Deflection Factor
Sweep Rates
Time Base A
Variable Range
Time Base B
Length
5 X Magnifier
Time Base A
Source
Coupling
Slope
Level
Time Base B
Source
Coupling
Slope and Level
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VERTICAL DEFLECTION SYSTEM
Performance Requirement
DC to ?::::80 MHz (at -3 dB point) displays at
100 mV /cm.
DC to ?::::75 MHz (at -3 dB point) displays at
10mV/cm.
0.1 V/cm
Supplemental Information
Equivalent to a risetime of 4.4 ns. Oscilloscope
used with the Type 82 or 86 Plug-In Unit.
Equivalent to a risetime of 4.7 ns. Oscilloscope
used with the Type 82 or 86 Plug-In Unit.
HORIZONTAL DEFLECTION SYSTEM
Accuracy within -+-3% of the indicated rate for
all calibrated front panel positions.
Accuracy within -+-3% of the indicated rate.
Sweep range from .05 fLs/cm to 2 s/cm in 24 cali-
brated steps.
An uncalibrated control (VARIABLE) provides con-
tinuously variable sweep rates from .05 fLs/ cm to
approximately 5 s/cm.
Sweep range from 2
flS/
cm to 1 s/ cm in 24 cali-
brated steps with 1-2-5 sequence.
A front panel control which will vary the sweep
length from about 4 cm to 10 cm.
Accuracy
IS
wlfhin -+-2% of the sweep rate
Expands the center 2 cm portion of the normal
accuracy.
display to 10 cm.
TRIGGERING
Line; Internal (from trigger pickoff circuit in the
vertical amplifier); and External.
Internal-AC, AC Low Frequency Reject and High
Freq Sync
External-AC, DC and High Freq Sync.
Trigger on positive or negative going slope of
the trigger signal.
Adjusts to permit triggering at any selected level
on either the rising or falling portion of the wave-
form and up to -+-10 V (external) in amplitude.
Line· Internal· External.
Internal-AC and AC Low Frequency Reject.
External-AC and DC.
Same as Time Base A except triggering level
range is up to ±7.5 V (external) in amplitude.
1-1
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