MIL-PRF-1/1657E
TABLE I. Testing and inspection.
Method
Limits
Inspection
MIL-STD-1311 Notes
Conditions
Symbol
Min
Max
Unit
Conformance inspection,
part 1
A dc
3/
1266
-0.3
0
Ic
Total grid current
Eb = 200 V dc;
Ec = -2 V dc;
Rg = 0.5 MegΩ;
Rk = 0
Ck = 1,000 F
1256
---
Electrode current (1)
Ib
9
19
mA dc
(anode)
A dc
1256
---
Ec = -5 V dc;
Ib
---
50
Electrode current (2)
Rk = 0
(anode)
Ck = 1,000 F
12,500 19,500 mhos
Sm
Transconductance (1)
1306
---
Output power (1)
4250
4/
Eb = 250 V dc
Po
1.7
---
W
Conformance inspection,
part 2
mA
245
205
If
Ef = 6.3 V
---
1301
Heater current
A dc
Heater-cathode leakage
1336
---
Ehk = +60 V dc
Ihk
---
+30
A dc
Ehk = -60 V dc
Ihk
---
-30
Sm
Transconductance (2)
1306
5/
Ef = 5.7 V
---
15
%
Ef
1331
1/
pF
Direct-interelectrode
2.7
1.5
Cgp
pF
capacitance
5.00
3.6
Cgk
pF
0.040
---
Cpk
A dc
1256
---
Ec = -2.5 V dc
Ib
100
---
Electrode current (3)
Rk = 0
(anode)
Ck = 1,000 F
Amplification factor
1316
---
Mu
55
85
---
E(g-all) = -100 V dc
Insulation of electrodes
1211
---
MegΩ
E(p-all) = -300 V dc
100
---
R
Po
---
0.2
W
Output power (2)
4250
4/
Ef = 5.7 V;
Eb = 250 V dc;
Ef
do not retune cavity
Conformance inspection,
part 3
mV ac
150
2/ 18/ Ebb = 125 V dc;
---
1031
Ep
Sweep frequency
R1 = 10,000 ohms;
vibration
Rk = 50 ohms
See footnotes at end of table.
2
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