MIL-PRF-1/866F
TABLE I. Testing and inspection Continued
Inspection
Method
Type
Conditions
Symbol
Limits
Unit
MIL-STD-1311
Min
Max
Conformance inspection,
part 3
Both
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Life test
Group C; t = 500
hours minimum;
Eb2 = 11,000 Vdc;
Ec2 = 770 V dc;
Eb1 at focus
P7A
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Ib2 = 60 ľA dc
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P19A
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Ib2 = 2 ľA dc
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0.50
P7A
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Life-test end points
Line width A
mm
Width
ΔEc1
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32
Modulation
V dc
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0.35
P19A
Line width A
mm
Width
ΔEc1
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15
Modulation
V dc
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Grid No. 1 leakage current
Both
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Heater-cathode
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leakage current
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Grid No. 2 leakage current
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Stray light emission
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(conventional types)
When Ec2 is greater than 330 V dc, Rg1 shall not exceed 0.5 MegΩ; when Ec2 is less than 330 V dc, Rg1 shall not
1/
exceed 1.5 MegΩ.
2/
Use an overscanned 35 to 105 line raster pattern with not less than .25 inch (6.35 mm) spacing between adjacent lines;
adjust for best focus at center of tube.
3/
Cylinder shall be 5-inches (127.0 mm) long and 1.503 inches (139.78 mm) maximum inside diameter.
4/
This test to be performed at the conclusion of the holding period.
4
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