MIL-PRF-1/1112H
TABLE I. Testing and inspection.
Inspection
Method
Notes
Conditions
Symbol
Unit
Limits
MIL-STD-1311
Min
Max
Conformance inspection,
part 1
Heater current
1301
3/
Ef = 4.2 V
If
30
38
A
Electrode current
1256
7/
egy = 365 v
ib
---
4.5
A
(anode)
Power level (output)
4250
7/ 8/
po
11.5
---
kw
9/ 10/
Electrode current (cutoff)
1256
---
egy = 0
Ib
---
1.0
ma
Δib/ib
Cathode emission
4214
12/ 13/
---
10
%
Conformance inspection,
part 2
Direct-interelectrode
4266
---
Connect shell to cathode
Cgk
---
150
pF
capacitance
Spectrum
---
16/
Spec 1
-43
---
dB
Spec 2
-53
---
dB
Torque test, rf output
---
---
No voltages
---
200
---
inch/pound
connector
Open-short circuit test
---
9/
---
---
---
---
Power level (pulse
4250
14/
---
---
2
%
droop)
Conformance inspection,
part 3
Life test
---
17/
Group D;
t
1,000
---
hours
tp = 10 μs (rectangular)
Psi = 1,300 W
Life test end-points:
---
Power level (output)
4250
7/ 11/
po
10.5
---
kw
Δib/ib
Cathode emission
4214
13/ 17/
---
10
%
Qualification tests
Power level (harmonic)
4250
18/
po
---
-50
dB
μw
Amplifier insertion loss
4257
15/
egy = 0
po
---
10
ib = 0
po
---
-3
dBm
Warmup time
4303
---
tk = 6 minutes (max)
---
---
---
---
t = 10 seconds
po
11.5
---
kw
See footnotes at end of table.
2
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