MIL-PRF-1/1203K
TABLE I. Testing and inspection.
Inspection
Method
Notes
Conditions
Acceptance
Symbol
Limits
Unit
Level 14/
Min
Max
Qualification inspection
Barometric pressure,
Pressure = 8 ± 1
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reduced
1002
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mmHg; 300 V ac
applied between grid
and anode
Sweep-frequency vibration
1031
11/
Ebb = 150 V dc;
mV ac
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Ep
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15
Rp = 10,000 ohms;
10 G; F = 100 to 5,000
Hz
Sweep-frequency vibration
1031
12/
Eb = Ec = 0;
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fatigue
Ef = 6.3 V
Sweep-frequency vibration-
fatigue test end points:
mV ac
Low-frequency vibration
1031
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Ep
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15
µA dc
Heater-cathode leakage
1336
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Ihk
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20
Noise figure (1)
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NF
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8.1
dB
Power gain
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Gain
11.5
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dB
Conformance inspection,
part 1
Heater current
1301
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0.65
If
222
258
mA
µA dc
Heater-cathode leakage
1336
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0.65
Ihk
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20
Noise figure (1)
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3/
F = 450 MHz;
0.65
NF
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6.6
dB
Cp = 500 pF
Power gain
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4/
F = 450 MHz;
0.65
Gain
12.5
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dB
Cp = 500 pF
Short and discontinuity
1201
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0.65
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detection
Conformance inspection,
part 2
Insulation of electrodes
1211
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R
100
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Meg
Electrode current (anode)
1256
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Ib
5.2
8.8
mA dc
µA dc
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Ic
0
-2.0
Grid emission
1266
6/
Ef = 7.0 V;
Ecc = -20 V dc;
Rg = 0.1 Meg
Grid recovery
2210
5/
Ebb = 250 V dc;
ĆIb
mA dc
Ec/Ib = 3.0 mA dc;
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0.6
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Ćib
ma
Rp = 10 K ohms
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1.0
See footnotes at end of table.
2
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