MIL-PRF-1/272F
SEE
A
NOTE 1
K
B
G
J
F
H
Minimum
Maximum
Ltr
in
mm
in
mm
Conformance inspection, part 2
A
1.938
49.23
2.063
52.40
B
0.875
22.23
E
C
1.312
33.43
1.438
36.53
D
D
7.438 188.93
7.812 198.42
SEE
NOTE 4
E
6.938 176.23
7.312 185.72
Reference dimensions (see note 3)
in
mm
F
3.062
77.77
G
0.225
5.72
C
12° 37'
H
SEE
J
8.00 R
NOTE 2
K
0.188 R
4.78 R
D3
D4
g2
6
7
1C
8 a2
5
A1 4
9 D2
3
K
10 D1
2
11
g1
1C
1
12
h
h
NOTES:
1. The minimum useful screen radius.
2. The base shall be a small shell duodecal 12 pin or small shell duodecal minus pins 5 and 11 (JEDEC B10-75).
3. Reference dimensions are for information only and are not required for inspection purposes.
4. The bulb shall be a J16A type. Either clear or filter glass may be used.
FIGURE 1. Outline drawing of electron tube types 2BP1, 2BP11.
5
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