MIL-PRF-1/1640E
TABLE I. Testing and inspection.
Method
Limits
Inspection
MIL-STD-1311
Notes
Test
Conditions
Symbol
Min
Max
Unit
Qualification inspection
T(body) = 70°C to
ĆF/ĆT
MHz/°C
Temperature coefficient
4027
31/
2
---
0.25
150°C; F = F2
Shock
1042
30/
---
Condition K;
---
---
---
---
No voltages applied
Direct-interelectrode
4266
---
---
Cathode terminal to
C
9
14
pF
capacitance
mounting plate
Low-temperature
1047
13/ 14/
2
F2
MP
---
0.5
%
operation
Conformance
1/
---
inspection, part 1
Heater current,
4289
---
---
Ef = 13.75 V
If
---
3.3
A
nonoperating
Mechanical tuning
4223
---
1
Upper limit
F
9,600
---
MHz
range
Lower limit
F
---
8,500
MHz
Pressurizing
4003
18/ 19/
---
40 to 45 psia
---
---
---
---
input and output
assemblies
Pulse voltage
4306
---
2
epy
20
23
kv
Power output
4250
22/
1
Po
200
270
W
---
2
Po
200
270
W
RF bandwidth
4308
17/
1, 2
BW
---
2.0/tpc
MHz
Minor lobe ratio
4308
17/
1
Ratio
10
---
dB
2
Ratio
8
---
dB
17/
Stability
4315
14/
1, 2
MP
---
0.25
%
Starting stability
4315
23/
2
F2
MP
---
0.25
%
Frequency variations
---
24/
2
F
---
0.1
MHz
Conformance
inspection, part 2
25°C ± 5°C
Operating torque
4223
---
---
Torque
---
45
inch-
or force
ounce
F3 ± 50 MHz
ĆF
Resettability
4223
---
2
---
10
MHz
ĆT
°C
Forced cooling
1143
7/ 8/ 31/
2
---
90
ĆF/Ća
Frequency pushing
4311
16/
2
ib = 15 to 27a
---
0.1
MHz/a
figure
ĆF
Frequency pulling
4310
27/
2
ib = 27.5a
---
5
MHz
figure
See footnotes at end of table.
3
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