MIL-PRF-1/1097J
TABLE I. Testing and inspection - Continued.
MIL-STD-
Limits
1311
Requirement or test
Conditions
Symbol
Unit
method
Min
Max
Conformance inspection,
part 2 - Continued
1296
Test condition (2);
ik
300
---
mA
Pulse current (1)
Ćik
Rk = 1.0 ohm
---
15
%
(cathode)
(see note 8 and note 11)
(tp)
1296
Test condition (2);
260
---
mA
Pulse current (2)
---
Ef = 11.4 V;
(cathode)
Rk = 1.0 ohm
(see note 8 and note 11)
1316
Test condition (1)
50
70
---
Amplification factor
Mu
(see note 8)
No shield
1331
1.30
1.90
pF
Direct-interelectrode
Cgp
No shield
2.00
3.00
pF
capacitance
Cin
No shield, section 1
0.20
0.70
pF
Cout
No shield, section 2
0.16
0.60
pF
Cout
No shield
0.15
0.33
pF
Cpp
No shield
2.10
3.50
pF
Chk
Ec = -3 Vdc;
---
100
mVdc
1031
High-frequency vibration
Ep
Ebb = 250 Vdc;
Rp = 2,000 ohms;
Rk = 0; Ck = 0
(see note 2)
Test condition (1);
---
---
----
1041
Shock
---
630 G; Ehk = 100 Vdc
(see note 9)
---
---
---
1031
Vibration fatigue
---
---
Post-shock and vibration-
fatigue test end points:
---
150
mVac
1031
Low-frequency vibration
Ep
μA dc
---
20
1336
Heater-cathode leakage
Ihk
μmhos
3,800
---
1306
Transconductance (1)
Sm
μA dc
0
-1.5
1266
Total grid current
Ic
See note 12
---
---
---
1121
Base strain
---
---
---
---
2126
Envelope strain
---
---
---
---
1105
Permanence of marking
---
See notes at end of table.
3
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