Specifications—455/A2/B2
TABLE 1-5 (continued)
Electrical (B2 Horizontal Module)
Characteristics
Performance Requirement
Supplemental Information
HORIZONTAL DEFLECTION
SYSTEM (cont.)
Variable Range (A only) 2.5 to 1 continuously variable between
calibrated settings. Extends slowest A
Sweep rate to at least 1.25 s/div.
A t least 2.5:1.
Sweep Length (A only)
10.5 to 11.5 div.
Trigger Holdoff Variable
Increases A Sweep holdoff time to at
least 10X the TIME/DIV switch setting,
execpt at .2 s and .5 s.
Magnifier Registration
Within 0.5 div from graticule center
(MAG on to MAG off)
Position Range
Start of sweep must position to the
right of graticule center. End of sweep
must position to the left of graticule
center. TIME/DIV switch at 1.0 ms/
div.
Differential Time
Measurement
Accuracy
(See Fig. 1 -3 on nex
For Measurements
of One or More
Major
Dial Divisions
t page)
For Measurements
of Less Than
One Major
Dial Division
With the A TIME/DIV switch at .5
/is/div or .2 Ats/div, the differential
time measurement accuracy lim it is
valid only for DELAY-TIME POSI
TION dial setting between 1.50 and
8.50.
+15°C to +35°C
±1.5%
±0.015
Major Dial
Division
Exclude delayed operation when knobs
are locked at any sweep speed or when
A TIM E/DIV switch is at .1 /ts/div or
.05 Ais/div.
— 15°C to +55°C
±2.5% ±0.025
Delay Time Jitter
One part or less in 20,000. (0.005%) of
ten times the A TIME/DIV switch setting.
Calibrated Delay Time
(VAR Control to CAL)
Continuous from 0.1 jus to at least 5
seconds after the start of the delaying
(A) sweep.
REV. A, OC T 1975
1-9
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