MIL-PRF-1/148E
TABLE I. Testing and inspection.
Limits
MIL-STD-1311
Requirement or test
Notes
Conditions
Symbol
Unit
method
Min
Max
Conformance inspection,
part 1
3206
---
Rg = 10,000 ohms
Ecc
1.35
-2.75
V dc
Operation
3241
---
If
16
A ac
Heater current
20
---
4
Ecc = 3 V dc;
Ep
---
V ac
AC starting voltage
43
Rg = 1,000 ohms
---
5
Ecc = 3 V dc;
Etd
---
V dc
Average arc drop
10.5
Rg = 1,000 ohms
---
6
Rg = 1,000 ohms
Ecc
---
V dc
Peak forward voltage
-5.3
Rg = 1 MegΩ
µA dc
3216
---
Ic
---
Grid current
5.0
1231
---
etd
---
Peak emission by
45
Grid connected to
v
voltage drop
anode through 10,000
ohms;
ib = 77 a
Conformance inspection,
part 2
---
7, 8
Ep = 0;
---
---
---
---
No-load operation
t = 100 hours
Conformance inspection,
part 3
---
---
Group D; operation;
---
---
---
---
Life-test
t = 500 hours
---
Life-test end points:
1231
---
etd
---
v
Peak emission
67
by voltage drop
3206
---
Ecc
+1.35
V dc
Operation
-2.75
µA dc
3216
---
Ic
---
Grid current
5
1031
2, 9
---
---
Low-frequency vibration
---
---
Hammer angle = 24°;
1041
9
---
---
Shock
---
---
Ef = 2.5 ± 10%
Cold starting
---
2, 3, 9
---
---
---
---
See notes at top of next page.
3
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