MIL-PRF-1/1330G
TABLE I. Testing and inspection - Continued.
Inspection
Method Notes
Conditions
Acceptance
Symbol
Limits
Unit
MIL-STD-
Level
13/
Min
Max
1311
Conformance inspection,
part 3 - Continued.
Group A
---
1501
Intermittent life
---
---
---
---
---
Stability life-test
---
---
Operation (1)
conditions;
t = 1,000 hours
---
---
---
---
---
Ebb = 150 V dc;
---
---
Operation (2)
Ec = -10 V dc;
ec = +8 v (driver side
of Rg);
Rg/g = 50 ohms;
Rb = 60 ohms;
tp = 10 ± 1 µs;
Du = 0.01 ± 0.1 %;
Ehk = -70 V dc;
t = 1,000 hours
Intermittent life-test
end points:
---
---
Operation (1)
mA
264
222
If
---
---
1301
Heater current
---
6,500
Sm
---
---
1306
Transconductance (1)
µmhos
25
---
---
---
1306
Transconductance (2)
ĆSm
%
Ef
20
---
---
---
1336
Heater-cathode
Ihk
µA dc
leakage
---
---
Operation (2)
264
222
---
---
1301
Heater current
If
mA
---
60
---
---
1231
Pulsing emission
ik
ma
20
---
---
---
1336
Heater-cathode
Ihk
µA dc
leakage
---
---
---
---
---
12/
Shock
1041
Hammer angle = 30°
Ehk = 50 V dc
Shock-test end points:
mV ac
15
---
Ep
---
---
1031
Low-frequency vibration
30
---
Ihk
---
---
1336
Heater-cathode
µA dc
leakage
---
6,500
Sm
---
---
1306
Transconductance (1)
µmhos
258
222
If
---
---
1301
Heater current
mA
1/
Operation below the rated maximum temperature is recommended for applications requiring the longest possible tube life.
2/
Ec = -10 V dc. Grid is driven with the pulse circuit as follows: ec = +7 V; prr = 1,000; tp = 10 ± 1 µs; tr = 1 µs (max); tf = 1 µs
maximum. Read peak cathode current.
4
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