MIL-STD-1311C Test Methods for Electron Tubes – DoD Standard PDF (EN)

Downloaded from https://www.everyspec.com MIL-STD-1311C 31 January 2001 DEPARTMENT OF DEFENSE Washington D. C. 20301 Test methods for electron tubes MIL-STD-1311C 1. This Department of Defense Standard is approved for use by all Departments and Agencies of the Department of Defense. 2. Recommended corrections, additions, or deletions should be addressed to: Defense Supply Center Columbus, DSCC-VAT, P.O. Box 3990, Columbus, OH 43216-5000. ii

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Downloaded from https://www.everyspec.com MIL-STD-1311C 31 January 2001 Page Paragraph 1. SCOPE ............................................................................................................................................... 1 1.1 Purpose............................................................................................................................................ 1 2. REFERENCED DOCUMENTS............................................................................................................ 2 2.1 Specifications, standards, drawings and reports...............................................................................

2 2.2 Other publications ............................................................................................................................ 2 3. ABBREVIATIONS, SYMBOLS, AND DEFINITIONS ........................................................................... 4 4. GENERAL REQUIREMENTS.............................................................................................................. 5 4.1 Numbering system ........................................................................................................................... 5 4.2 Methods of reference........................................................................................................................

5 4.3 Order of precedence......................................................................................................................... 5 4.4 Obsolescent test methods................................................................................................................ 5 4.5 Destructive tests............................................................................................................................... 5 4.6 Alternate test methods .....................................................................................................................

5 4.7 Additional testing.............................................................................................................................. 6 4.8 General test conditions..................................................................................................................... 6 4.9 Microwave tube test setup instructions and precautions................................................................... 8 4.10 Phototube test instructions ...............................................................................................................

9 4.11 Life-test conditions ........................................................................................................................... 9 4.12 Definitions and instructions for pulse modulators and pulse diodes.................................................. 10 4.13 Definitions for cathode-ray charge storage tubes........................................................................ ...... 16 5. NOTES................................................................................................................................................

17 5.1 Metric equivalents…......................................................................................................................... 17 5.2 Subject term (key word) listing.......................................................................................................... 17 INDEXES Alphabetical Index............................................................................................................................... 18 Numerical Index of Test Methods ........................................................................................................

26 APPENDIX Test methods ...................................................................................................................................... 33 iii

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Downloaded from https://www.everyspec.com MIL-STD-1311C 31 January 2001 1. SCOPE 1.1 Purpose. This standard establishes uniform methods for testing the environmental, physical, and electrical characteristics of electron tubes as required by MIL-PRF-1 and the applicable tube specification sheet (TSS). Unless otherwise specified or authorized, tests shall be conducted as specified herein (see 4.6). 1

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Downloaded from https://www.everyspec.com MIL-STD-1311C 31 January 2001 2. REFERENCED DOCUMENTS 2.1 Specifications, standards, drawings and reports. The issues of the following documents in effect on the date of invitation for bids form a part of this standard to the extent specified herein. SPECIFICATIONS DEPARTMENT OF DEFENSE MIL-PRF-1 - Electron Tubes, General Specification for. MIL-E-75 - Electron Tubes, Packaging of. MIL-PRF-22684 - Resistors, Fixed, Film (Insulated), General Specification for. STANDARDS DEPARTMENT OF DEFENSE MIL-STD-188-200 - System Design and Engineering Standards for Tactical Communications.

MIL-STD-202 - Test Method Standard Electronic and Electrical Component Parts. DRAWINGS DEPARTMENT OF DEFENSE 123-JAN - Bump Test Equipment. 180-JAN - High Impact (Fly Weight) Shock Machine for Electronic Devices Bill of Materials. 182-JAN - Acoustic Chamber for AF Noise and Microphonics Test. 184-JAN - End-Grip Retainer for Impact Testing of Miniature and Sub-Miniature Electron Tubes. 194-JAN - Noise and Microphonics Test Set. 200-JAN - Deflection Cone for Miniature Tube Base Strain Test. 216-JAN - Tube Clamps and Adapter Rings (for Impact Tests). 244-JAN - 900-Megacycle and Resonant Frequency Test Equipment. 245-JAN - Holder for Glass Strain Testing of Miniature and Subminiature Tubes.

(Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific acquisition functions should be obtained from the acquiring activity or as directed by the contracting officer. JAN and DSCC drawings are available from the Defense Supply Center Columbus, DSCC-VAT, P.O. Box 3990, Columbus, Ohio 43216-5000.) REPORTS Measuring Light Output of Cathode Ray Tube Screens. (Primary Standard replica lamps; ref. Method 5221) Material Laboratory (Naval) Final Report, 5032-B15.40. Specification Development and Technical Evaluations of Types 3ACP19 and 12SP25 Cathode Ray Tubes. (Light output measurements for P19 and P25 phosphors; ref.

Method 5221) Material Laboratory (Naval) Final Report, 5032-B-15.91. (Copies required by suppliers in connection with specific acquisitions may be obtained from SPACE AND NAVAL WARFARE SYSTEMS COMMAND, 4301 Pacific Highway, San Diego, CA 92110-3127.) 2.2 Other publications. The following documents form a part of this standard to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI-Z540.1-94 - Laboratories, Calibration, and Measuring and Test Equipment (DoD adopted).

(Applications for copies should be addressed to the American National Standards Institute (ANSI), Sales and Service, 11 West 42 nd Street, New York, NY 10036.) 2

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