MIL-PRF-1/1670D
TABLE I. Testing and inspection.
MIL-STD-
Acceptance
Limits
1311
Inspection
Method
Conditions
Level 13/
Symbol
Min
Max
Unit
Conformance inspection,
part 1
Electrode voltage (grid)
1261
0.65
Ec1
-35.0
-48.0
V dc
Electrode current (screen)
1256
0.65
Ic2
-7.0
+3.0
mA dc
µA dc
0.65
Ic1
---
-15
Total grid current
1266
Eb = 2,000 V dc;
Ec1/Ib = 125 mA dc
µA dc
1266
Ic1 = 70 mA dc;
Primary grid emission
0.65
Isg1
---
-25
t = 15; anode and g2
(control)
floating
µA dc
1266
Ec1 = 0; t = 15;
Primary grid emission
0.65
Isg2
---
-250
Ic2 = 100 mA dc;
(screen)
anode floating
Current division
1372
Eb = Ec2 = 250 V dc;
0.65
egk
5.0
16.0
v
(long pulse)
Ec1 = -100 V dc;
ic1
---
200
mA
prr = 11 ± 1;
ic2
---
260
mA
tp = 4,500 µs (min);
egk/ib = 1.0 a
Conformance inspection,
part 2
Heater current
1301
---
If
2.3
3.0
A
Direct-interelectrode
1331
---
---
Cpk
0.01
pF
capacitance (grounded
---
12.0
Cin
16.0
pF
grid connection)
3.9
Cout
---
4.35
pF
F = 442 ± 5 MHz;
---
po
10.0
---
kw
Power gain
---
useful
ec2 = 1,000 v;
Eb = 5,500 V dc;
Ec1 = -100 to
-200 V dc
Du = 0.005;
tp = 250 µs;
prr = 20;
pd = 1,000 w (max);
ib = 3.5 a (max) 6/
See footnotes at end of table.
2
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business