MIL-PRF-1/970F
TABLE I. Testing and inspection Continued.
Requirement or test
Method
Test
Conditions
Symbol
Limits
Limits
Unit
MIL-STD-1311
Min
Max
Conformance
inspection, part 3
t
500
---
hrs
Life test
---
3
Group D; li = 150 to
200 A dc 2/
Life test end points:
---
Insertion loss
4416
---
F4; li = 0 1/
Li
---
1.0
dB
(fixed tuned)
Spike-leakage energy
4452
1
2/
Ws
---
0.3
erg
Flat-leakage power
4452
1
2/
pf
---
40
mW
s
Recovery time
4471
3
2/
t
---
30
Temperature cycling
1027
---
Group C; 10 cycles
---
---
---
---
life-test end point
1/ This test shall be performed using the flanges specified in Drawing 268-JAN.
2/ This test shall be performed using the mount specified in Drawing 153-JAN or equivalent.
3/ A swept frequency method of measurement may be used instead of measurement at fixed frequencies.
4/ The tube shall be mounted in accordance with Drawing 208-JAN, and the complete assembly cycled once from -55C to
+100C. After the temperature has again reached room temperature, the pressure shall not have changed more than one-
2
quarter of a pound/in as indicated by a gauge permanently connected into the system.
5/ This specification sheet uses accept on zero defect sampling plan in accordance with MIL-PRF-1, table III.
6/ The tube shall be capable of being inserted and removed from the mount specified in Drawing 153-JAN or equivalent a
minimum of 15 times with no deterioration in the tube's electrical characteristics.
7/ To obtain copies of the JAN drawings e-mail TubeAmps@dla.mil group except for drawing 153-JAN.
3
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