MIL-PRF-1/1716B
TABLE I. Testing and inspection.
Acceptance Symbol
Limits
Unit
Inspection
Method
Conditions
Level 5/
Min
Max
Conformance inspection,
part 1
a
---
53
is
0.65
eb = ec2 = ec1 = 2.5 kv
1231
Peak emission
Filament current
1301
0.65
If
73
78
A ac
Electrode voltage (grid)
1261
0.65
Ec1
-95
-127
V dc
Total grid current
1266
0.65
Ic1
---
-20
µA dc
Electrode current
1256
0.65
Ic2
---
+15
mA dc
(screen)
0.65
Isg1
---
-35
1266
Ic1 = 600 mA dc;
Primary-grid emission
µA dc
t = 15; Ef = 9.0 V ac;
(control)
anode and screen-grid
grounded
0.65
Isg2
---
-100
1266
Ec1 = 0; t = 15;
Primary-grid emission
µA dc
Ic2 = 550 mA dc;
(screen)
Ef = 9.0 V ac;
anode grounded
Conformance inspection,
part 2
egk
Current division
1372
Eb = Ec2 = 1,500 V dc;
---
0.0
v
ic2
---
(method B, short pulse)
Ec1 = -600 V dc;
---
1.25
a
egk/ib = 11a
Cin
pF
122.0
108.0
Direct-interelectrode
1331
Grounded cathode
Cout
---
pF
23.0
18.0
capacitance
Cgp
pF
1.0
---
Cin
pF
58.0
48.0
Direct-interelectrode
1331
Grounded grid
Cout
---
pF
23.0
18.0
capacitance
Cpk
pF
0.16
---
Conformance inspection,
part 3
4/
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Service-life guarantee
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See footnotes at end of table.
2