DLA MIL-DTL-25547 C-2002 LOUDSPEAKER PERMANENT MAGNET LS-211 AIC-13《LS-211 AIC-13型永磁提扬声器》.pdf
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1、INCH-POUND MIL-DTL-25547C 21 June 2002 SUPERSEDING MIL-L-25547B 6 February 1975 DETAIL SPECIFICATION LOUDSPEAKER, PERMANENT MAGNET LS-211/AIC-13 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type
2、 of loudspeaker, designated loudspeaker, permanent magnet, LS-211/AIC-13. This loudspeaker is a horn type unit with a frequency response of 200-7000 Hz, nominal 16 ohms voice coil impedance, and a 20 watt peak power output (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this
3、section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users ar
4、e cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this d
5、ocument to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications, and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL A-A-52024 -
6、 Compass, Magnetic: Surveyors and Transit, Pocket; with Optional Ball and Socket Joint or Ball and Socket Head, and Jacobs Staff. STANDARDS FEDERAL FED-STD-595 - Colors Used in Government Procurement. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of
7、use in improving this document should be addressed to: Defense Supply Center, Columbus, ATTN: VAI, P.O. Box 3990, Columbus, OH 43216-5000, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 5965 DISTRIBUTION STAT
8、EMENT A. Approved for public release; distribution is unlimited.* Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-25547C 2 DEPARTMENT OF DEFENSE MIL-STD-130 - Identification Marking of U. S. Military Property. MIL-STD-202 - Test Methods for E
9、lectronic and Electrical Component Parts. MIL-STD-810 - Environmental Engineering Considerations and Laboratory Test. (Unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D,
10、 Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Un
11、less otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI/NCSL Z540-1 - Laboratories, Calibration, and Measuring and Test Equipment. (Applications for copies should
12、 be addressed to the American National Standards Institute, Inc., 1430 Broadway, New York, N.Y. 10017.) AMERICAN SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) AMS-QQ-A-250/2 - Aluminum Alloy 3003, Plate and Sheet (Application for copies should be addressed to the American Society Of Automotive Engineers, 40
13、0 Commonwealth Drive, Warrendale, PA 15096-0001.) INTERNATIONAL ORGANIZATION for STANDARDS (ISO) ISO 10012-1 - Equipment, Quality Assurance Requirements for Measuring Equipment Part 1:Metrologic Confirmation System for Measuring Equipment. (Application for copies should be addressed to American Nati
14、onal Standards Institute (ANSI), 11 West 42ndStreet, New York, NY 10036.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational serv
15、ices.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. RE
16、QUIREMENTS 3.1 First article. When specified (see 6.2), loudspeakers shall be subjected to first article inspection in accordance with 4.4. 3.2 Materials. Materials shall be as specified herein. However, when a definite material is not specified, a material shall be used which will enable the loudsp
17、eaker to meet the performance requirements of this specification. Acceptance or approval of any constituent material shall not be construed as a guaranty of the acceptance of the finished product. 3.2.1 Aluminum. Aluminum shall conform to SAE-AMS-QQ-A-250/2, Alloy 3003, or equivalent. * * Provided b
18、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-25547C 3 3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the ma
19、terial meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.3 Design and construction. 3.3.1 Dimensions. The dimensions of the loudspeaker shall be as shown on figure 1. 3.3.2 Width of air gap. The air gap for the voice coil in the
20、 permanent magnet shall be such that the difference between the minimum width of the radial air gap and the maximum thickness of the voice coil shall be at least 0.014 inch. 3.3.3 Weight. The weight of the loudspeaker shall not exceed 1.6 kilograms. 3.3.4 Color. The loudspeaker color shall be luster
21、less gray, color #36270 in accordance with FED-STD-595. 3.3.5 Terminal board. The voice-coil lead wire of the loudspeaker shall be brought to a terminal board on the mounting plate of the loudspeaker assembly, as shown on figure 1. The terminal board shall be covered with a metal protective shield w
22、ith a grommet to permit the entry of a 5/16-inch diameter cable. The terminal board shall be constructed of a suitable high-grade insulating material and shall contain a minimum of two screws which will accept a No. 6 wire terminal. 3.4 Voice coil impedance. When loudspeakers are tested as specified
23、 in 4.6.2, the impedance of the voice coil, mounted in a complete loudspeaker assembly, shall be 16 3.2 ohms. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-25547C 4 Inches mm Inches mm .001 .005 .180 .250 .312 .03 .13 4.57 6.35 7.92 3.875 4
24、.97 5.375 6.80 7.5 98.43 126.24 136.53 172.72 190.50 NOTES: 1. Dimensions are in inches. 2. Unless otherwise specified tolerances are .015 (.38 mm) for three place decimals and .06 (1.52 mm) for two place decimals. FIGURE 1. Outline drawing loudspeaker LS 211/AIC-13.Provided by IHSNot for ResaleNo r
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