MIL-PRF-1/1096E
MIL-STD-
Acceptance
Limits
1311
Requirement or test
Notes
Conditions
level
Unit
Symbol
method
(see note 12)
Min
Max
Conformance
inspection, part 1
mA dc
7.1
3.9
lb
0.65
Electrode current (1)
1256
(anode)
µA dc
-0.3
---
Ic1
0.65
Total grid current
1266
mA
210
190
If
0.65
Heater current
1301
µmhos
3,950
2,650
Sm
0.65
Transconductance (1)
1306
5.0
---
Ihk
0.65
Heater-cathode
1336
µA dc
leakage
---
---
---
0.4
Short and discontinuity
1201
---
detection
Conformance
inspection, part 2
MegΩ
R
2.5
1211
Insulation of electrodes
100
---
Ep
2.5
Rp = 10,000 ohms
1031
High-frequency
---
75
mV ac
vibration
EB
2.5
Esig = 70 mV ac;
1246
Audio frequency noise
---
---
---
Rg1 = 0.1 MegΩ;
Ec2 = 19 V dc;
Rg2 = 1,000 ohms;
Rp = 0.2 MegΩ
Ib
2.5
1256
Electrode current (2)
---
200
µA dc
Ec3 = -10 V dc
(anode)
Ib
2.5
Electrode current (3)
1256
5
---
µA dc
Ec3 = -6 V dc
(anode)
lb
2.5
Electrode current (4)
1256
---
200
µA dc
Ec1 = -9 V dc
(anode)
Ib
2.5
Electrode current (5)
1256
5
---
µA dc
Ec1 = -5 V dc
(anode)
Ic2
2.5
Electrode current
1256
2.8
5.4
mA dc
(screen grid)
Ic1
6.5
Grid emission
1266
---
-0.5
µA dc
Ef = 7.5 V;
Ec1 = -10 V dc
ĆSm
2.5
Transconductance (2)
1306
---
10
%
Ef = 5.7 V
Ef
See notes at end of table.
2
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