MIL-PRF-1/1400D
TABLE I. Testing and inspection - Continued.
Inspection
Method
Conditions
Symbol
Limits
Unit
MIL-STD-1311
Min
Max
Conformance inspection, part 2
Heater current
1301
---
If
1,620
1,980
mA
µA dc
Electrode current (anode)
5201
Ec1 = 0
Ib1
-15
+10
Alignment base and neck
5101
---
---
---
---
---
Ib3 = 5 µA dc
Light output
5221
---
25
---
fL
µA dc
Heater-cathode leakage
5251
---
---
---
10
Base, cap, and insert secureness
1101
---
---
---
---
---
Conformance inspection, part 3
---
Group C;
Life test
Ec2 = Eb2 = 6,000 V dc;
---
---
---
---
Eb3 = 15,000 V dc;
Ib3 = 5 µA dc;
Ib3 = 5 µA dc;
Life-test end point (500 hours)
---
ĆEc1
---
30
V dc
Modulation;
---
.0013
inch
Line width A
---
---
.0018
inch
Line width B
---
1/
All tests except vibration and interaction factor shall be made on each unit separately.
It is recommended that the deflection electrode circuit resistances be 1 MΩ or less and approximately equal; otherwise beam
2/
shift at high drives can be expected. Higher resistance values up to 5 MΩ may be used for low beam current operation.
3/
This tube is designed for optimum performance when operating at an Eb3/Eb2 ratio of 2.0. Operation at other ratios of
Eb3/Eb2 may result in changes in deflection uniformity and pattern distortion.
4/
With the horizontal traces of guns A and B passing through the tube face center, and the horizontal trace of gun C passing
through its undeflected spot point, all three traces shall be within 1 degree maximum angle.
5/
Corresponding horizontal traces of each unit shall be within 1 degree of each other.
6/
With focus (Eb1) and astigmatism (Eb2) voltages adjusted for the best center line width, line widths "A" and "B" shall be not
greater than .013 inch (0.33 mm) and .018 inch (0.46 mm), respectively. The specified spot position for each gun shall be
used to locate the points for line widths "A" and "B".
At no point within the specified scan area of any gun shall the line width exceed .080 inch (2.03 mm) with focus and
astigmatism voltages adjusted for the best center line width.
At no point within the specified scan area of any gun shall the line width exceed .030 inch (0.76 mm) when compromise focus
and astigmatism correction are used.
4
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