MIL-PRF-1/884G
TABLE I. Testing and inspection.
Inspection
Method
Notes
Conditions
Symbol
Limits
Unit
MIL-STD-
1311
Min
Max
1/
Conformance inspection,
part 1
-25
---
1266
2/
Ic
Total grid current
µA dc
Peak emission
1231
---
eb = ec = 2,500 v
is
10.0
---
a
Electrode voltage (1)
1261
---
Ec(1)
-8.0
-18.0
V dc
(grid)
Electrode voltage (2)
1261
---
Eb = 14 kV dc;
Ec(2)
---
-1,000
V dc
(grid)
Ib = 1 mA dc
Primary grid emission
1266
---
Ic = 325 mA dc;
Isg
---
-500
µA dc
t = 15 seconds;
Ef = 5.5 V ac;
anode floating
Filament current
1301
---
Connect in parallel
If
24.0
28.0
A ac
Conformance inspection,
part 2
Power oscillation
1236
---
Eb = 3,000 V dc;
Po
540
---
W
Ec/Ib = 300 mA dc;
(useful)
F = 8 MHz;
Rg = 10,000 ohms
1316
---
Mu
19.0
24.0
---
Amplification factor
Cgp
pF
11
8
Direct-interelectrode
1331
---
Cin
pF
16
12
capacitance
Cout
pF
1
---
See footnotes at end of table.
2
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