![img](MIL-PRF-1-6000003im.jpg)
MIL-PRF-1/60D
TABLE I. Testing and inspection.
Limits
MIL-STD-
Accep-
1311
Requirement or test
Type
Conditions
tance
Symbol
Unit
Min
Max
method
level
(see
note 12)
Conformance
inspection, part 2 -
Continued
Direct-interelectrode
1331
a, c, e
No shield
Cga
---
0.25
pF
capacitance
b, d
Shield No. 308
---
Cga
---
0.5
pF
All
Shield No. 308 for T9 bulbs
Cg3-all
7.6
11.4
pF
All
Shield No. 308 for T9 bulbs
Ca-all
7.0
12.0
pF
Shock
b
1041
450 G (see note 8)
15
---
---
---
---
Post-shock test end
---
points:
µA dc
Heater-cathode
b
1336
---
Ihk
---
30
leakage
µmhos
Transconductance
b
1306
---
Sg1g2
3,000
6,000
Permanence of marking
All
1105
---
---
---
---
---
Conformance
inspection, part 3
1501
Intermittent life
All
Test conditions (1),
---
---
---
---
---
Group A, Ehk = 100 V
(see note 9)
---
Intermittent life-test
---
end points
(500 hours):
1326
Conversion trans-
All
µmhos
conductance (1)
---
Sc
225
---
1237
Oscillator grid current
All
(1)
---
Ic1
See
---
---
note
10
1031
Vibration fatigue
b
---
---
---
---
---
(see note 11)
---
Vibration-fatigue
test end points:
µA dc
1336
Heater-cathode
b
---
Ihk
---
30
leakage
µmhos
1306
Transconductance
b
---
Sg1g2
3,000
6,000
1031
Variable-frequency
b
Rp = 2,000 ohms
---
Ep
---
500
mV ac
vibration (see note 11)
See notes on top of next page.
3
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