MIL-PRF-1/292F
TABLE I. Requirement or test.
Limits
MIL-STD-1311
Requirement or test
Unit
Notes
Conditions
Symbol
method
Min
Max
First article inspection
Resonant frequency
2220
Length
13.5
---
cm
Conformance inspection,
part 1
Short and discontinuity
1201
---
---
---
---
detection
Heater current
1301
If
138
162
mA
Emission
1231
2
Es = 6.5 V dc
Is
15
---
mA dc
Operation of rectifiers
1353
3, 4
Io
9.0
---
mA dc
µA dc
Heater-cathode leakage
1336
2
Ihk
---
10
Conformance inspection,
part 2
Insulation of electrodes
1211
2
R
---
---
---
µA dc
Electrode current
1256
2
Ebb = 0;
Ib
2
20
(anode)
Rp = 40,000 ohms
µA dc
Electrode current
1256
Ib
---
5
(anode)
(difference between
sections)
Direct-interelectrode
1331
No shield
capacitance
1a to 2a
0.06
0.12
pF
1a to h+1k+sd
1.9
3.5
pF
2a to h+2K+sd
1.7
3.3
pF
1k to h+1a+sd
C
2.4
4.2
pF
2k to h+2a+sd
2.8
4.6
pF
1k to h
1.1
2.2
pF
2k to h
1.3
2.5
pF
Lead fatigue
1116
---
---
---
---
Envelope strain
2126
---
---
---
---
Shock
1041
450 G
---
---
---
---
Variable-frequency vibration
1031
5
No voltages
---
---
---
---
Vibration-fatigue
1031
5
---
---
---
---
Shock, variable-frequency
---
vibration, and
vibration-fatigue test
end points:
µA dc
Heater-cathode
1336
Ihk
---
15
leakage
Operation of rectifiers
1353
Io
7.0
---
mA dc
Permanence of marking
1105
---
---
---
---
See notes at end of table.
2
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