MIL-PRF-1/1631B
Ltr
Dimensions
Inches
Millimeters
Min
Max
Min
Max
Conformance inspection, part 1
A
----
3.750
----
95.25
B
----
2.375
----
60.33
F
----
3.190
----
81.03
J
CAP: C1-1
K
BASE: B6-242
Conformance inspection, part 2
C
----
1.750
----
44.45
D
0.365
0.395
9.27
10.03
H
0.105
0.135
2.67
3.43
Pin Connections
No.
Element
1
Shell
3
No Connection
NOTES: Metric equivalents (to the nearest 0.01 mm) are given for general information only and
4
Cathode
are based upon 1 inch = 25.4 mm.
5
Heater
6
Heater
7
No Connection
Cap
Reflector
FIGURE 1. Outline drawing of electron tube type VA-220B.
4
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