MIL-PRF-1/1389F
TABLE I. Testing and inspection - Continued.
Limits
Inspection
Method
Notes
Conditions
Symbol
Min
Max
Unit
Conformance inspection,
part 2
Heater current
1301
---
If
270
330
mA
Neck and bulb
5101
---
---
---
---
---
(magnetic types)
Side terminal and base
5101
---
Halfway between 1 and 9
---
-10
+10
Degrees
alignment
Face tilt
5101
---
---
---
---
---
Stray light emission
5216
---
Eb = 11,000 V dc;
---
---
---
---
(conventional types)
Ec2 = 450 V dc
Screens
5221
3/
---
---
---
---
Ib = 100 µA dc
Line width A
5226
---
Width
---
0.33
mm
(magnetic deflection)
Ib = 100 µA dc
Line width C
5226
---
Width
---
0.50
mm
(magnetic deflection)
Heater-cathode leakage
5251
---
---
---
---
---
current
Grid No. 2 leakage current
5251
---
---
---
---
---
Permanence of marking
1105
---
---
---
---
---
Conformance inspection,
part 3
Life test
---
---
Group C;
t
500
---
hrs
Eb = 11,000 V dc;
Ec2 = 450 V dc;
Ib = 60 µA dc
---
Life-test end points:
Ib = 60 µA
Width
---
0.33
mm
5226
---
Line width A
ĆEc1
Ib = 320 µA
---
40
V dc
5223
1/
Modulation
See footnotes at top of next page.
3
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