MIL-PRF-1/1330G
TABLE I. Testing and inspection.
Inspection
Method
Notes
Conditions
Acceptance Symbol
Limits
Unit
MIL-STD-1311
Level
13/
Min
Max
Qualification inspection
---
4/
1002
---
---
Barometric pressure,
---
---
Voltage = 300 V ac
reduced
10/
Ebb = 150 V dc;
Sweep-frequency vibration
1031
---
Ep
---
15
mV ac
Rp = 10,000 ohms;
10 G; F= 100 to
2,000 Hz
1031
11/
Sweep-frequency vibration
Eb = Ec = 0;
---
---
---
---
---
fatigue
Ef = 6.3 V
Sweep-frequency vibration
---
fatigue test end points:
1031
---
Low-frequency vibration
---
mV ac
---
Ep
15
1336
---
Heater-cathode leakage
---
Ihk
---
30
µAdc
1306
---
Transconductance (1)
---
Sm
---
6,500
µmhos
1301
---
Heater current
---
If
258
222
mA
Conformance inspection,
part 1
258
mA
222
If
0.65
---
1301
Heater current
Heater-cathode leakage
1336
---
0.65
Ihk
---
20
µA dc
1256
---
0.65
Ib
4.5
11.0
mA dc
Electrode current
(anode)
Transconductance (1)
1306
---
Eb = 100 V dc;
0.65
Sm
8,000
---
µmhos
Rk = 0
Pulsing emission
1231
2/
Rk = 1.0 ohm
0.65
ik
90
---
ma
Short and discontinuity
1201
---
0.65
---
---
---
---
detection
Conformance inspection,
part 2
MegΩ
insulation of electrodes
1211
---
---
R
100
---
Transconductance (2)
1306
---
Ef = 6.0 V;
---
---
20
%
ĆSm
Eb = 100 V dc;
Ef
Rk = 0
---
Ec
---
-4.5
V dc
Electrode voltage (grid)
1261
---
Rk = 0;
Ec/Ib =100 µA dc
1316
---
---
Mu
65
115
---
Amplification factor
See footnotes at end of table.
2
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