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|  MIL-E-1/188H
TABLE I. Testing and inspection - Continued.
MIL-STD-1311
Requirement or test
Notes
Conditions
Symbol
Limits
Units
Test method
Min
Max
Conformance inspection,
part 2 - Continued
1231
Pulse emission
2/ 7/
Ef = 6.0 V;
is
300
---
ma
e pulse = 50 v;
tp = 25 s;
prr = 200 pps
---
Pulse cathode current (1)
1/ 2/ 8/
Ef = 6.3 V;
ik
330
---
mA
Ćik(tp)
Type 6021WSPL
eb = 150 v;
---
10
%
Ec = -25 V dc
egk = +30 v
---
Pulse cathode current (2)
1/ 2/ 8/
Ef = 5.9 V;
ik
310
---
mA
Type 6021WSPL
eb = 150 v;
Ec = -25 V dc
egk = +30 v
1116
Lead fatigue
---
---
---
---
2126
Envelope strain
---
---
---
---
1041
Shock
9/ 10/
450 G;
---
---
---
---
ehk = +100 V dc;
Rg = 0.1 Meg
1031
Vibration-fatigue
---
---
---
---
---
Shock and vibration-
fatigue-test
end points:
1031
High-frequency vibration
2/
Rp = 10,000 ohms
Ep
---
200
mV ac
A dc
1336
Heater-cathode leakage
2/
Ihk
---
20
ĆSm
1306
Change in transconduct-
2/
---
20
%
ance (1) of individual
t
tubes
1105
Permanence of marking
---
---
---
---
Conformance inspection,
part 3
1506
Heater-cycling life
Ef = 7.0 V; 1 min
---
---
---
---
on, 4 min off;
Ehk = 140 V ac;
Ec = Eb = 0
1516
Stability life
Ehk = +200 V dc;
---
---
---
---
Rg/g = 1.0 Meg;
TA = room
---
Stability life-test end point:
(2 and 20 hours)
ĆSm
1306
Change in transconduct-
2/
---
15
%
ance (1) of individual
t
tubes
See footnotes at end of table.
3
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