MIL-PRF-1/1383D
16. The output-end will accept gauge G3 (see figure 7). Proper acceptance is obtained when gauge is seated on the output-
end rf cathode terminal contact surface. The gauge is properly seated when a .015 inch (0.38 mm) thickness gauge
.500 inch (12.70 mm) wide will not enter between gauge G3 and the rf cathode contact surface.
17. The input-end will accept gauge G4 (see figure 8). Proper acceptance is obtained when gauge is seated on the input-
end rf cathode terminal contact surface. The gauge is properly seated when a .015 inch (0.38 mm) thickness gauge
.500 inch (12.70 mm) wide will not enter between gauge G4 and the rf cathode terminal contact surface.
18. The input-end will accept gauge G5 (see figure 9). Proper acceptance of the DC grid No. 2, the filament sections No. 1
and 2 terminals is obtained when the gauge seats properly on the input-end rf cathode terminal contact surface.
19. The indicated annular surface between the diameter AN and AP has a finish suitable for an 'O'-ring gas pressure seal.
20. The axis of the rf anode terminal contact surface is coincident with the axis of the grid No. 1 terminal contact surface
within .050 inch (1.27 mm).
21. The axis of the DC anode and coolant connection is coincident with the axis of the rf anode terminal contact surface
within .025 inch (0.64 mm).
22. This edge is rounded to a .031 inch (0.79 mm) radius. The diameter of this coolant seal plate shall be 3.710 inch (94.23
mm) maximum.
23. Dimensions E, R, S and notes 1, 2, 3, 4, 16, 17, and 18 shall be conformance inspection, part 1 tests. Remaining
dimensions, excluding reference dimension, and notes shall be tested on a minimum of 1 tube out of every 50 tubes.
24. The centers of the water course holes in each connection around the periphery of the tube shall be on a line through the
center of these holes and perpendicular to a line through the center of the tube within ±2 degrees.
FIGURE 1. Outline drawing of electron tube type 2041 - Continued.
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