MIL-PRF-1/1261H
Dimensions
Ltr
Inches
Millimeters
Min
Max
Min
Max
Qualification
10°
10°
L
N
Base: B6-63
P
Bulb contact: J1-21
Conformance inspection, part 2
A
17.630
18.380
447.80
466.85
B
12.310
12.560
312.67
319.02
C
1.375
1.500
34.93
38.10
D
5.500
---
139.70
---
E
10.310
10.690
261.87
271.53
F
2.630
3.380
66.80
85.85
M
1.500
---
38.10
---
Reference dimensions (see note 4)
55°
55°
G
H
40
1016
J
20
508
K
.438
11.13
NOTES:
1. Useful screen radius.
2. Reference line is determined by point where gauge G-112 will rest on bulb cone.
3. Anicorna coating. Tube should not be handled by this part of the bulb.
4. Reference dimensions are for information only and are not required for inspection purposes.
5. Metric equivalents (to the nearest 0.01 mm) are given for general information only and are based
upon 1 inch = 25.4 mm.
FIGURE 1. Outline drawing of electron tube types 12ABP1A, 12ABP7A, and 12ABP19A.
6
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