MIL-PRF-1/1755B
NOTES:
1. Reference plane "A" is defined as a plane passing along the face of the mounting plate.
2. Reference plane "B" is defined as a plane perpendicular to plane "A" passing through the axis of the holes, as shown at
reference plane "A".
3. Reference plane "C" is defined as a plan mutually perpendicular to planes "A" and "B" passing through the axis of the
holes, as shown at reference plane "A".
4. Includes angular as well as lateral deviations.
5. Body temperature to be measured at this point. The magnetron serviceability will not be impaired with a screw inserted or
removed from this threaded hole.
6. Input bushing temperature to be measured at this point.
7. For vibration and shock testing, the planes of testing shall be reference planes "A" - "B" - "C".
8. Warning: Maintain minimum clearance 4 inches between magnet and magnetic materials (magnets, steel tools, plates,
etc.). Use no magnetic inspection tools.
9. Protective closure. To be removed before magnetron is used, and attached when the tube is not in use.
10. The inner laminations of the cooling fins are not painted. However, there may be an overspray of the protective paint.
11. Indicates direction of body cooling airflow.
12. Mates with modified choke flange, M3922/59-007. (Clearance instead of threaded holes).
13. With the tube mounted on the test fixture and with the specified air pressure applied so as to surround the entire input
terminal beyond the tube mounting plate, the entire magnetron and fixture are to be submerged in water. No bubbles are
allowed in a one minute interval.
14. With the tube output flange clamped against a modified choke flange (M3922/59-007), and using a gasket per A-A-55549,
and with the specified air pressure applied to the interior of the waveguide submerge entire magnetron and fixture in water.
No bubbles are allowed in a one minute interval.
15. A plane passing through the axis of two threaded holes perpendicular to the face of the output flange must be parallel to
planes "A" and "C" within .030.
16. The face of the waveguide flange shall be flat within .010 total indicator reading. The surface of this flange shall be of such
a quality that a hermetic type seal can be effected. See note s.
17. Input connection mates with Jettron Products Inc., East Hanover, NJ Connectors Cat. No. 90-006 and 90-030, or
equivalent.
18. Heater terminal and cathode terminal shall be concentric within .010.
19. This diameter applies for the length from AE to AD.
20. This face has a satin type (smooth, dull) finish of approximately 63 micro-inches. (Galvanic couples for this material are
listed in MIL-HDBK-2036).
21. These dimensions apply to the axis of diameter "Z".
22. This identifies a north pole. Refer to MIL-STD-1311, method 1367.
23. It is recommended that the tuner knob be replaced after salt water immersion. Care should be taken to note the number
setting indicated on the dial before removal of the knob. This dial number shall be set on the replacement knob prior to
installing in the time shaft.
FIGURE 1. Outline drawing of electron tube type DOD-033 - Continued.
Custodians:
Preparing activity:
Army - CR
DLA - CC
Navy - EC
Air Force - 11
(Project 5960-3589)
DLA - CC
Review activities:
Navy - AS, OS
9
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