MIL-PRF-1/1047D
TABLE I. Requirement or test.
MIL-STD-1311
Requirement or test
Notes
Conditions
Symbol
Unit
Limits
method
Min
Max
Conformance
inspection, part 1
µA dc
1266
Ic
---
-8.0
Total grid current
3/ 5/
1256
Ib
60
95
Electrode current (1)
3/
mA dc
(anode)
µmhos
1306
Sm
20,000
30,000
Transconductance
MegΩ
1211
Eb = Ek = 0;
R
50
---
Insulation of
Ec = -500 V dc
electrodes
1231
prr = 600 (max);
etd
---
225
Pulsing emission
v
tp = 3 µs (max);
eb = ec = etd/is = 6a
1236
Po(1)
7
---
Power oscillation (1)
6/ 7/
F = 3,000 MHz (min);
W
(pulse)
epy = 3.5 kv; Rg/ib = 4a or Ib
(useful)
= 10 mAdc with Ic = 6 mA dc
(max); Ec = -1.5 V (min);
Ef = 5.8 V
1301
If
0.95
1.10
Heater current
A
Conformance
inspection, part 2
---
No voltages applied
---
---
---
---
Resonance
6/ 8/
---
eb = 0; egx = 400 v; (60 Hz);
---
---
---
---
Grid arcing
9/
Rg/Ic = 100 mAdc
1236
F = 3,000 MHz (min);
Po(2)
4
---
W
Power oscillation (2)
6/ 7/
epy = 3.5 kv;
(useful)
(pulse)
Rg/ib = 3a or
Ib = 7.5 mAdc with
Ic = 4.5 mAdc (max);
Ec = -1.5 V (min);
Ef = 5.9 V
1261
Ec/Ib = 1.0 mAdc
Ec
---
-15
V dc
Electrode voltage
3/
(grid)
---
Power oscillation (1) (pulse)
Band-
---
1.0
MHz
Bandwidth, rf
10/
width
Use fixture in accordance with
1331
Cgk
5.60
7.60
pF
Direct-interelectrode
6/
Drawing 158-JAN
Cgp
1.86
2.16
pF
capacitance
Cpk
---
0.035
pF
See footnotes at end of table.
5
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