MIL-PRF-1/1313G
TABLE I. Testing and inspection.
Inspection
Method
Notes
Conditions
Symbol
Limits
Unit
MIL-STD-1311
Min
Max
Conformance inspection,
part 1
1256
---
Ic2
---
-5.0
mA dc
Electrode current
(screen)
+3.0
µA dc
Total grid current
1266
4/
Eb = 2,000 V dc
Ic1
---
-15
Electrode voltage (grid)
1261
---
Ec1
-32.0
-45.0
V dc
µA dc
Primary-grid emission
Ic1 = 70 mA dc;
1266
---
Isg1
---
-25
(control)
t = 15 seconds; anode and
g2 floating
µA dc
Primary-grid emission
Ec1 = 0; t = 15 seconds;
1266
---
Isg2
---
-250
(screen)
Ic2 = 100 mA dc;
anode floating
Ćik
2212
5/
---
200
ma
Pulse emission (1)
Eb = Ec2 = 250 V dc;
Ec1 = -100 V dc;
egk/ik = 1.5 a;
Ef = 5.4 V ac;
tp = 4,500 µs (min);
prr = 11 ± 1;
tr = tf = 25 µs;
slope = 0.5 percent;
ripple = 0.1 percent
Current division
Eb = Ec2 = 250 V dc;
1372
---
egk
8.0
18.0
v
ic1
---
250
ma
(method A)
Ec1 = -100 V dc;
ic2
---
250
ma
egk/Ib = 1.0 a;
tp = 4,500 µs (min);
prr = 11 ± 1
Conformance inspection,
part 2
1301
---
If
2.6
3.1
A ac
Heater current
ĆIb
Stability
Eb = 2,000 V dc;
---
---
---
10
mA dc
Ec1/Ib = 150 mA dc at
t = 0; read ĆIb at t = 120
seconds
Rs = 2.5 MegΩ; E = 100 V
MegΩ
Interelement leakage
1366
13/
Rg1k
50
---
resistance, cold
dc, g1 negative
MegΩ
Rg1g2
50
---
E = 500 V dc, g2 positive;
MegΩ
Rg2p
50
---
E = 500 V dc, p positive
See footnotes at end of table.
2
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