MIL-PRF-1/747F
TABLE I. Testing and inspection - Continued.
Method
Limits
Inspection
MIL-STD-1311
Notes
Conditions
Symbol
Unit
Min
Max
Conformance inspection,
part 2
Heater current
1301
---
If
540
660
mA
µA dc
Electrode current
5201
---
Ec1 = 0
Ib1
-15
10
(anode No. 1)
Neck and base alignment
5101
---
---
---
---
---
(electrostatic types)
Angle between traces
5101
---
---
---
---
---
Cathode illumination
5216
---
---
---
---
---
Stray light emission
5216
---
Eb2 = 2,750 V dc
---
---
---
---
(conventional types)
Line width A
5226
---
Light = 20 ftL
Width
---
0.65
mm
(electrostatic deflection)
Line width B
5226
---
Light = 20 ftL
Width
---
0.65
mm
(electrostatic deflection)
Focusing voltage at cutoff
5246
---
Ec1 = cutoff
Eb1
---
700
V dc
Deflection factor
5248
---
1D2
DF
68
92
Vdc/inch
Deflection factor
5248
---
3D4
DF
28
38
Vdc/inch
Secureness of base, cap,
1101
---
---
---
---
---
or insert
Permanence of marking
1105
---
---
---
---
---
Conformance inspection,
part 3
Life test
---
---
Group C;
---
---
---
---
light = 20 ftL
Eb2 = 2,750 V dc;
t = 500 hrs (min)
Life-test end points:
---
Line width A
5226
---
Light = 16 ftL
Width
---
0.65
mm
Line width B
5226
---
Light = 16 ftL
Width
---
0.65
mm
ĆEC
Modulation
5223
---
Light = 16 ftL
---
38
V dc
1/
This value is recommended only for low-velocity deflecting and low-ambient light levels.
2/
All light dependent tests to be measured with a 1.125 inch (28.58 mm) vertical and 1.562 inch (39.69 mm) horizontal, 30-line
raster. Photocell is to have a 1-inch (25.40 mm) active aperture and calibrated in foot lamberts similar to Photovolt
Corporation type 200-A, or equal.
3/
This test to be performed at the conclusion of the holding period.
3
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