MIL-PRF-1/1336G
TABLE I. Testing and inspection - Continued.
Inspection
Method
Conditions
Acceptance
Symbol
Limits
Unit
MIL-STD-1311
Level 13/
Min
Max
Conformance inspection,
part 2 - Continued
Eb = 250 V dc;
---
Grid current operation
---
Ic1
---
15
µA dc
Ec2 = 150 V dc;
Ec1 = -6 V dc through a 0.5
MegΩ resistor;
Ef = 6.5 V 9/
---
Ep
---
500
mV ac
Low-frequency vibration
1031
Eb = 250 V dc;
Ec2 = 100 V dc;
Ef = 12.6 V;
Ec1 = -10 V dc;
Rp = 2,000 ohms
Heater current
1301
---
If
1.55
1.85
A
Transconductance
1306
Rk = 825 ohms
---
Sm
5,000
7,000
µmhos
---
Ihk
---
50
Heater-cathode leakage
1336
Ehk = 450 V dc
µA dc
Cgp
---
1.2
pF
Cin
Direct-interelectrode
13
1331
No shield
21
pF
---
Cout
capacitance
7.5
12.5
pF
15
---
---
---
---
Shock
1041
450 G;
Ehk = 450 V dc;
Ec1 = -10 V dc;
Rp = 2,000 ohms;
Eb = 250 V dc;
Ec2 = 100 V dc
6.5
---
---
---
---
Vibration-fatigue
1031
5 G; F = 50 to 500 Hz;
Ef = 6.3 V;
no other voltages applied
11/
---
Shock and vibration-
fatigue-test end points
100
---
Ihk
---
Ehk = 450 V dc
1336
Heater-cathode
µA dc
leakage
---
ib
3.75
---
a
Grid-pulse operation
1356
Ebb = 420 V dc;
Ecc2 = 800 V dc
Ecc1 = -150 V dc;
egy = 155 v 8/
(test in accordance with
figure 4)
Secureness of base,
1101
---
---
---
---
---
cap, or insert
1216
---
---
---
---
---
Base material insulating
quality
See footnotes at end of table.
3
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