MIL-PRF-1/99E
TABLE I. Testing and inspection.
Limits
MIL-STD-1311
Conditions
Symbol
Unit
Requirement or test
method
Min
Max
First article inspection
Power oscillation (2)
1236
Power oscillation (1);
Po
28
---
W
F = 60 MHz
Conformance inspection,
part 1
1231
Eb = Ec1 = Ec2 = 50 V dc
Is
300
---
mA dc
Emission
(see note 3)
1236
Ec2 = 200 V dc;
Po
33
---
W
Power oscillation (1)
Rg = 10,000 ohms;
Ic1 = 6 mA dc;
Ib = 100 mA dc;
F = 15 MHz.
1256
Ib
24
48
mA dc
Electrode current (1)
(anode)
µA dc
1266
Ic
---
- 4.0
See note 3.
Total grid current
1201
---
---
---
See note 5.
Short and discontinuity
---
detection
Conformance inspection,
part 2
1031
Eb = 250 V dc;
Ep
---
500
mV ac
Low-frequency
Ec2 = 100 V dc;
vibration
Ec1 = -10 V dc;
Rp = 2,000 ohms
Hammer angle = 20°
1036
---
---
---
---
Bump
1301
Heater current
If
810
990
mA
Type 807
If
405
495
mA
Type 1625
µA dc
Ihk
---
100
1336
Heater-cathode leakage
Ib
---
0.5
1256
Electrode current (2)
Ec1 = -100 V dc
mA dc
(anode)
Ic2
0
4.0
1256
Electrode current
mA dc
(screen)
µA dc
Ic2
---
-750
1266
Primary grid emission
Eg2 = 175 V ac (approx);
Type 807
Eb = Ec2 = 0;
Ec1 = 0 to 6 V dc;
Pg2 = 5W (see note 4)
µmhos
Sm
5,100
6,900
1306
Transconductance
Eb = Ec2 = 250 V dc;
Type 1625
Ec1 = -14 V dc
---
---
---
1236
Internal insulation
---
Cgp
---
0.2
1331
Direct-interelectrode
Shield No. 312
pF
Cin
10.0
14.0
capacitance
Without shield
pF
Cout
5.3
8.7
Without shield
pF
See notes at end of table.
2
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