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| MIL-E-1/9H
TABLE I. Conformance inspection.
Method
Requirement or test
Conditions
Acceptance
Symbol
Unit
Limits
MIL-STD-
Level
Min
Max
1311
(note 12)
Conformance
inspection, part 1
1256
Plate current (1)
See note 4
0.4
Ib
1.5
3.5
mAdc
Adc
1256
Plate current (2)
Eb = 100 Vdc
0.4
Ib
---
50
See note 5
Ec1 = -14 Vdc;
Ec3 = 0
Adc
1266
Total grid 3 current
Ec3 = -2 Vdc
0.4
Ic3
0
-1.0
See notes 1 and 4
1301
Heater current
0.4
If
275
325
mA
mhos
1306
Transconductance
Eb = 100 Vdc;
0.4
Sm
6,000
9,600
(1) (oscillator)
Ec3 = 0
See note 5
mhos
1326
Transconductance
See note 4
0.4
Sc
300
700
(1) (conversion)
Adc
1336
Heater-cathode
0.4
Ihk
---
10
leakage
1201.5
Shorts and discontinuity
0.4
---
---
---
---
detection
Conformance
inspection, part 2
1105
Permanence of
---
---
---
---
---
marking
MegΩ
1211
Insulation of electrodes
2.5
R
100
---
1031
Low-frequency vibration
Ec1 = Ec3 = -3 Vdc; Rp
6.5
Ep
---
300
mVac
= 10,000 ohms
---
Blocking
Ec1 = -3 Vdc
2.5
---
---
---
---
See note 3;
Rg3 = 0 (except for
meter resistance)
2
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