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Page Title:
Conformance inspection, Part 3 - Cont'd |
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|  MIL-E-1/83G
MIL-STD-1311
Requirement or test
Conditions
Symbol
Units
Limits
Test method
Min
Max
Conformance inspection,
part 3 - Continued
---
Intermittent life-test
end points: (1,000
hours)
3241
Heater current
If
550
666
MA
3201
Critical anode voltage
Ecc1
-1.6
-4.8
V dc
for conduction (1)
3201
Critical grid voltage
Ebb
---
120
V dc
for conduction (1)
A dc
1336
Heater-cathode
Ehk = +25 V dc
Ihk
---
50
A dc
leakage
Ehk = -100 V dc
Ihk
---
50
1211
Insulation of electrodes
g2 = p
R
300
---
Meg
---
---
---
---
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Life test (continuous)
Group A;
epy = 500 v (approx);
egy = 100 v (max);
Ecc1 = -50 V dc;
Ecc2 = 0;
Zo = 12.5 5 percent;
Rl = 7.5 5 percent
18/
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Life-test end points;
(200 hours) (continuous)
1231
Pulse emission
etd
---
100
v
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Operation under
4/
ib
16
---
a
continuous life-test
conditions
1031
Vibration-fatigue
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---
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Vibration-fatigue
test end points:
A dc
1336
Heater-cathode
Ehk = +25 V dc
Ihk
---
40
A dc
leakage
Ehk = -100 V dc
Ihk
---
40
3201
Critical anode voltage
Ebb
---
50
V dc
for conduction (1)
1231
Pulse emission
etd
---
76
v
3201
Critical anode voltage
Ecc1
-2.9
-4.5
V dc
for conduction (1)
1/ After completion of a pulse, a 20 s delay is required before a positive voltage of more than 10 v is applied to the
tube.
2/ Averaged over any interval of 30 seconds maximum.
3/ This test shall be performed at the conclusion of the holding period.
4/ Thirty seconds shall be the maximum time under test conditions before reading ib. There shall be no evidence of
amplitude jitter.
5/ Connect pins No. 5 and No. 7 to pin No. 2.
5
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