MIL-PRF-1/60D
TABLE I. Testing and inspection.
Limits
MIL-
Accep-
STD-
Requirement or test
Type
Conditions
tance
Symbol
Unit
Min
Max
1311
level
method
(see
note 12)
Conformance inspection,
part I
µmhos
Conversion transcon-
1326
All
Test conditions (1)
1.0
Sc
300
600
ductance (1)
(see notes 2 or 3)
µA dc
Total grid current
1266
a, b,
Test conditions (1)
1.0
Ic3
0
-2.0
c, d
(see note 2 or 3, and note 4)
µA dc
Total grid current
1266
e
Test conditions (2)
1.0
Ic3
0
-2.0
Rg3 = 0.1 MegΩ
(see note 2 or 3 and note 4)
Grid emission
All
1266
---
Ic1
---
-5.0
µA dc
Preheat with Ehk = 100 V dc
for 5 minutes; Ec1 = Ec3
= -3.4 V dc (see note 5)
Oscillator grid
All
1237
1.0
---
---
---
Test conditions (1)
---
current (1)
(see note 3)
Emission
All
1231
1.0
Is
70
---
Eb = Ec1 = Ec2
mA dc
= Ec3 = Ec4 = 30 V dc
(see note 4)
Electrode current
All
1256
1.0
Ib
2.5
4.5
Test conditions (1)
mA dc
(anode)
(see note 2 or 3)
Electrode current
All
1256
1.0
Ic2 + 4
6.5
11.5
Test conditions (1)
mA dc
(screen)
(see note 2 or 3)
Conformance inspection,
part 2
Low-frequency vibration
1031
All
Rp = 10,000 ohms;
---
Ep
---
300
mV ac
Ec1 = Ec3 = -3.5 V dc
Heater current
1301
a, b
---
If
275
325
mA
Heater current
1301
c, d, e
---
If
138
162
mA
µA dc
Heater-cathode leakage
1336
All
---
Ihk
---
20
µmhos
Conversion trans-
1326
e
Test conditions (2),
---
Sc
200
400
Ic1 = 120 µA dc,
conductance (2)
(see note 2 or 3)
µmhos
Conversion trans-
1326
All
---
Sc
0.5
25
Test conditions (1);
conductance (3)
Ec3 = -35 V dc;
(see note 2 or 3)
Transconductance
1306
All
---
Sg1g2
3,500
5,900
µmhos
Test conditions (1);
Eb = 100 V dc;
Ec3 = 0 (see note 6)
Oscillator grid current (2)
1237
e
---
Ic1
100
200
Test conditions (2);
µA dc
Rg1 = 50,000 ohms,
(see note 7)
See notes at end of table.
2
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