MIL-PRF-1/812E
TABLE I. Testing and inspection.
Inspection
Method
Notes
Conditions
Symbol
Limits
Unit
MIL-STD-1311
Min
Max
Conformance
inspection, part 1
1301
A ac
Filament current
---
If
13.5
14.7
1266
ľA dc
Total grid current
3/
Ic1
---
-10
1266
ľA dc
Primary grid emission
---
Ef = 5.5 V ac;
Isg1
---
-100
(control)
Ic1 = 165 mA dc;
t = 15 sec; anode and
screen grid floating
1266
ľA dc
Primary grid emission
---
Ef = 5.5 V ac;
Isg2
---
-200
(screen)
Ec1 = 0;
Ic2 = 135 mA dc;
t = 15 sec;
anode floating
1261
V dc
Electrode voltage (grid)
---
Ec1
-65
-95
1231
is
a
Peak emission
eb = ec1 = ec2
---
5.0
---
= 2,500 v
Conformance
inspection, part 2
1316
Mu
g1 to g2;
Amplification factor
---
4.5
6.0
---
Ec2 = 500 V dc;
Ic2 = 70 mA dc;
Eb = 0
(anode grounded)
1236
Power oscillation (1)
Ebb = 3,000 V dc;
---
Po
350
---
W
Ib = 200 mA dc;
(useful)
Ic2
Ec2 = 350 V dc;
50
100
mA dc
Rg1 = 12,000 ohms;
F = 15 MHz
1331
Cgp
pF
Direct-interelectrode
---
---
0.14
Cin
pF
capacitance
10.7
14.5
Cout
pF
3.7
5.1
See footnotes at end of table.
2
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