MIL-PRF-1/839F
TABLE I. Requirements - Continued.
Method of
Acceptance
Limits
Unit
MIL-STD-
Requirement or test
Notes
Conditions
level
Symbol
Min
Max
1311
(see note 10)
Conformance
inspection, part 2 -
Continued
pF
1331
Direct-interelectrode
Shield No. 316
6.5
Cglp
---
0.075
pF
capacitance
Shield No. 316
Cin
6.0
12.0
pF
Shield No. 316
Cout
4.0
7.0
---
mA dc
1256
Electrode current (3)
Eb = Ec2 = 60 V dc;
2.5
Ib
25
(anode)
Ec1 = 0; Rk = 0
15.5
mA dc
1256
Electrode current (2)
Eb = Ec2 = 60 V dc;
6.5
Ic2
6.5
(screen grid)
Ec1 = 0; Rk = 0
150
mV ac
1031
High-frequency
Rp = 2,000 ohms
2.5
Ep
---
vibration
---
---
1031
Vibration-fatigue
4
6.5
---
---
---
---
1041
Shock
4, 5
450 G; Ehk =100 V dc
---
---
---
---
Shock and vibration-
fatigue-test end points:
300
mV ac
1031
High-frequency
Rp = 2,000 ohms
---
Ep
---
vibration
µA dc
50
1336
Heater-cathode
---
Ihk
---
leakage
µA dc
-4.0
1266
Total grid current
---
Ic1
0
---
W
1341
Power output
Esig = 4.25 Vac;
---
Po
0.8
RL = 2,500 ohms
---
---
1121
Base strain
6
---
---
---
---
---
2126
Envelope strain
2.5
---
---
---
---
1105
Permanence of
---
---
---
marking
See footnotes at end of table.
3
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