MIL-PRF-1/1361H
G
W
A
X
T
Lead
Lug
Inches
Millimeters
In.
mm
In.
mm
In.
mm
In.
mm
designations
Min
Max
Min
Max
Max
Max
Max
Max
Min
Min
Max
Max
Reservoir
#10
.187
.207
4.75
5.26
.395
10.03
.200
5.08
.275
6.99
.060
1.52
Heater-reservoir
1/4
.260
.313
6.60
7.95
.605
15.37
.305
7.75
.380
9.65
.060
1.52
Heater
1/4
.260
.313
6.60
7.95
.605
15.37
.305
7.75
.380
9.65
.060
1.52
NOTES:
1. Dimensions are in inches.
2. There shall be no obstruction within the distance X from the center of the lug screw hole.
3. Lugs or terminals shall be permanently marked as follows: H (heater), HR (heater-reservoir), and R (reservoir).
FIGURE 2. Pressure type terminal lugs with insulating sleeves.
Dimensions
Ltr
Inches
Millimeters
Min
Max
Min
Max
A
7.000 DIA
177.80 DIA
NOTES:
B
2.671 R
2.673 R
67.84 R
67.89 R
1. Dimension are in inches.
C
2.312 R
2.314 R
58.72 R
58.78
2. Millimeters are provided using 1.00 inch = 25.4 mm.
D
.2765 DIA .2775 DIA
7.02 DIA 7.05 DIA
3. Dimensions are in accordance with ASME Y14.5M.
88°
92°
88°
92°
E
F
.296
.328
7.52
8.33
G
.250 STOCK
6.35 STOCK
FIGURE 3. Base gauge for electron tube types 7390 and 7390A.
9
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