MIL-PRF-1/ 37E
Table 1. Testing and Inspection.
Inspection
Method
Notes
Conditions
Symbol
Limits
Limits
Units
Min
Max
Conformance
4
inspection, part 1
A ac
22.7
20.0
If
-
1301
Filament current
a
---
15.0
is
eb = ec1 = ec2
-
1231
Peck emission
= 2,500 v
mA dc
+20
0.0
Ic2
-
1256
Electrode current
(screen)
V dc
-35
-15
Ec1
-
1261
Electrode voltage
(grid)
µA dc
-25
---
Ic1
3
1266
Total grid current
µA dc
-250
---
Isg1
Ef = 8.25 V ac;
-
1266
Primary grid emission
Pg1 = 30 W or
(control)
Ic1 = 150 mA
dc;
t = 15 seconds;
anode and
screen-
grid floating
µA dc
-250
---
Isg2
Ef = 8.25 V ac;
-
1266
Primary grid emission
Pg2 = 90 W or
(screen)
Ic2 = 160 mA
dc;
t = seconds;
Ec1 = 0; anode
floating
Conformance
4
inspection, part 2
---
---
---
---
No voltages
-
1031
Low-frequency
vibration
Angle = 10°
---
---
---
---
-
1036
Bump
---
7.7
6.1
Mu
-
1316
Amplification factor
Ec2 =1,000 V
(g1 to g2)
dc;
Ic2 = 75 mA dc;
Eb = 0
pF
0.35
---
Cgp
-
1331
Direct-interelectrode
pF
32.4
23.8
Cin
capacitance
pF
9.4
6.8
Cout
W
---
1,500
Po
-
1236
Power oscillation
F = 110 MHz
(min);
Eb = 5,000 V
dc;
Ec2 = 450 V dc;
Ib = 600 mA dc
2