1、MIL- O - 148 5 O (MU) 6 January 1969 MILITARY SPECIFICATION OSCILLATOR, HIGH-VOLTAGE: 10549785 1. SCOPE 1.1 This specification covers one type of transistorized, high-voltage oscillator which is a solid-state electronic device for converting 5.90 volt Qc (nominal) to 2700 volt ac (nominal) peak-to-p
2、eak output at a frequency of 1.2 to 2.0 Kilohertz (KHZ). 2. APPLCABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invita- tion for bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS Military MIL-E - 1 / 1049 MIL
3、-T-152 MIL-F-13926 MIL-P - 1423 2 MIL-I -45607 STANDARDS Military MIL-STD-105 MIL-STD-109 MIL- STD-202 6914 Image Converter Tube Treatment, Moisture and Fungus-Resistant, of Communications, Electronic and Associat- ed Electrical Equipment Fire Control Materiel: General Specification Governing the Ma
4、nufacture and Inspection of Parts, Equipment and Tools for Army Materiel, Packaging and Packing of Inspection Equipment, Supply and Maintenance of Sampling Procedures and Tables for Inspec- Quality Assurance Terms and Definitions Test Methods for Electrical and Electronic tion by Attributes Componen
5、t Parts DRAWINGS U. S. Army, Frankford Arsenal B10549785 Oscillator, High-Voltage: 10549785 PACKAGING DATA SHEET 1054 9 7 8 5 Packaging of Oscillator, Hgh-Voltage Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-0-14850 (MU) (Copies of specificati
6、ons, standards, drawings, and packaging data sheets required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the con- trac ting officer . ) 3. REQUIREMENTS 3.1 Fabrication.- The oscillator shall be manufactured in accord
7、ance with Drawing B10549785. 3.1.1 Moisture-fungus resistance.- The oscillator shall be treated per Type 1 for moisture and fungus resistance in accordance with MIL-T-152. 3.2 General specification.- The contractor shall be responsible for adherence to the following requirements of MIL-F-13926: (a)
8、Dimensions and tolerances. (b) inorganic protective surface finishes. (c) Part identification and marking. (d) Workmanship (e) Soldering electrical connections. 3.3 Environmental service conditions. 3.3.1 when subjected to vibrations in each of two planes. One plane parallel to the longitudinal axis
9、 of the oscillator and the second plane perpendicular to the longitudinal axis of the oscillator. The vibrations shall consist of the following conditions: Vibration.-.The oscillator shall show no evidence of failure (a) An applied frequency of 30 cps, amplitude of .O625 inch (total excursion ,1250
10、inch) for three minutes in each of the two planes. (b) An applied frequency of 50 Cps, amplitude of .O4 inch (total excursion of -08 inch) for 2 minutes in each of the two planes. (c) The applied frequency shall vary uniformly between the limits of 10 and 60 cps at an amplitude of .O5 inch (total ex
11、cursion of .lo inch). The frequency shall be varied from 10 cps to 50 cps and returned to 10 cps in one minute. Repeat this frequency sweep 10 times in each of the two planes. During vibration, the oscillator shall exhibit an output voltage of 2700 5 100 volts (V) peak-to-peak when operating with 5.
12、90 -t- .O1 volt dc input, no output load and subjected to a capacitive load of 25 pico picofarads (pf). Subsequent to vibration, the oscillator shall meet the requirements of 3.4. 3.3.2 Shock.- The oscillator shall withstand 6 shock impulses applied The acceleration of each The nominal value for pul
13、se in each of 2 mutually perpendbcular directions. shock impulse shall be 100 gravity units (8). duration shall be 3 milliseconds. subjected to the following conditions: This requirement shall be met while being Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
14、m IHS-,-,-NIL-O-LYBCO L2 9997706 02975511 MIL-O- 14850 (MU) (a) (b) (c) Input voltage 5.90 +, .O1 volts dc. No output load and a total capacitive load of 25 pf. Output voltage 2700 f 1.OOV peak-to-peak. Subsequent to the shock impulses, the oscillator shall show no evidence of failure and shall meet
15、 the requirements of 3.4. 3.3.3 Thermal shock.- While operating with an input of 5.90 I1 .O1 volt dc, no output load and a total capacitive load of 25 pf, the oscillator shall not be damaged and shall produce an output voltage of 2700 f 1OOV peak-to- peak during and at the conclusion of 10 of the fo
16、llowing cycles: (a) Ambient temperature (75F f 5F to plus 150F). (b) (c) (d) Plus 150F to ambient temperature. Ambient temperature to minus 65F. Minus 65F to ambient temperature. The rate of change of ambient temperature shall not be less than 108F per minute. 3.3.4 Operating temperatures.- The osci
17、llator shall be capable of meet- ing the requirements of 3.4.1, 3.4.2, 3.4.3.and 3.4.5 when thermally stab- ilized at temperatures ranging from minus 65F to plus 150F. 3.3.5 Storage.- The oscillator shall show no evidence of physical or electrical failure subsequent to being stored for 24 hours at t
18、emperatures ranging from minus 80F to plus 160OF. 3.3.6 Humidity, non-operating.- The oscillator shall show no evidence of physical damage or electrical failure due to exposures in atmospheres of 100% RH including condensation. 3.4 Performance. 3.4.1 Operation.- With input voltages of 5.80 f .01, 5.
19、90 I: .O1 and 6.00 t .O1 volts dc, and under all load and source conditions described in Table 1, the oscillator shall operate as follows: (a) An input current not to exceed 20 milliamperes (ma) dc and a ripple current content of a frequency equal to the operating frequency of the oscillator and who
20、se peak value equals the dc value. (b) Output voltages as shown in Table 1. (c) Output frequency of 1.2 to 2.0 kilohertz (KH,). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MfL-O-l4850(MU) TABLE 1 - Output Voltages Source Impedances Output Load To
21、tal Capacitance AC Output Voltage (OHMS) d -C of Output Load Volts Picofarad (pf) (Peak-to-Peak O O O O Max. No Load 25 No Load 35 No Load 50 Full Load 25 No Load SO 2700 k 100 2700 f 100 2700 + 100 - 150 2700 f 100 1600 5 200 3.4.2 Rise time.- The oscillator shall start and reach steady state condi
22、tions within 5 seconds under the following conditions: (a) (b) of radiation on the photocathode is adjusted to 30 milliwatts of power in the image converter. (c) (d) (e) An input voltage of 5.80 f 0.01 volts dc. Overload - With the image converter tube energized the amount A total capacitive load of
23、 50 pf. A source impedance of from zero to maximum. At a temperature of minus 65OF. 3.4.3 Output current.- With an input voltage of 6.00 k 0.01 volts, a total capacitive load of 50 pf and no output load, the oscillators steady state output current shall not exceed 10 milliamperes peak-to-peak and sh
24、all contain current surges due to capacitor charging and diode recovery not great- er than 200 microamperes total. 3.4.4 Noise level.- While operating at an input voltase of 6.00 f 0.01 volts, the dc oscillator noise shall be inaudible to a person with normal hearing at a distance of 30 feet against
25、 a background noise level of 30 de- cibels above referenced noise when operated from no load to full load. (Re- ference level for noise measurement; 100 cps sound wave having intensity of 10-16 watt per square centimeter.) 3.4.5 Stray field.- With an input voltage of 6.00 f 0.01 volts dc, the oscill
26、ator shall produce no evidence of stray field (leakage magnetic flux). 3.5 Operational safety. (a) The oscillator with full output load shall not be damaged when subjected to a reversed polarity input voltage of 7 volts dc for 1 minute. subjected to the input voltage of 7 volts de and the output: (b
27、) The oscillator shall start, operate and not be damaged when (1) Short circuited for 1 minute. (2) Open circuited for 15 minutes. o Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-0-14850 12 m 7777906 027755b 1 m MIL-O-l485O(MU) (c) The oscillat
28、or shall start, operate continuously and not be damaged with an input voltage of 5.90 f 0.01 volts dc and the output with an overload and total capacitive load of 50 pf. then not exceed 20 ma and the output peak-to-peak voltage shall be 2500 volts k 300 volts. The dc input current shall 3.6 Reliabil
29、ity.- With an input voltage of 7.0 volts de the oscillator shall exhibit a minimum mean time between failures (MTBF) of 2000 hours with an acceptable confidence level of 90 percent. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.- Unless otherwise specified in the contract or purc
30、hase order, the supplier is responsible for the performance of all inspection requirements as specified herein. specified, the supplier may utilize his own facilities or any other facili- ties suitable for the performance of the inspection requirements specified herein, unless disapproved by the Gov
31、ernment. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services con- form to prescribed requirements. Except as otherwise 4.1.1 General provisions.- The component and subassembly i
32、nspection requirements of MIL-F-13926 form a part of the Quality Assurance Provisions of this specification. in MIL-STD-109. Definitions of inspection terms shall be as listed 4.2 First article (initial production) approval.- The requirement for first article approval and the responsibility (Governm
33、ent or contractor) for first article testing shall be as specified in the contract. for first article approval tests shall consist of at least three (3) oscillators (see 4.3.2.2). The sample shall be manufactured in the same manner, using the same materials, equipment, processes, and procedures as u
34、sed in regular production. All parts and materials, including packaging and packing, shall be obtained from the same source of supply as used in regular production, The sample 4.2.1 Government testing.- When the Government is responsible for con- ducting first article approval tests, the contractor,
35、 prior to submitting the sample to the Government, shall inspect the sample to insure that it conforms to all the requirements of the contract and submit a record of this inspection with the sample, including certificates of conformance for materials. 4.2.2 Contractor testing.- When the contractor i
36、s responsible for con- ducting first article approval tests, the sample shall be inspected by the contractor for all the requirements of the contract. The sample and a re- cord of this inspection, including certificates of conformance for materials, shall be submitted to the Government for approval.
37、 The Government reserves the right to witness the contractors inspection. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-0-14850 12 H 9999906 0297557 3 MIL-0-14850 (MU) 4.3 inspection provisions. 4.3.1 Submission of product.- Unless otherwise sp
38、ecified by the con- tracting officer, inspection lot size, lot formation and presentation of lots shall be in accordance with “Submission of Productt1 provisions of NIL-STD-105. 4.3,2 Examination and tests. 4.3.2.1 Components and subassemblies.- All components and subassemblies shall be inspected in
39、 accordance with the inspection provisions contained in Supplementary Quality Assurance Provisions (SQAP) listed in the List of In- spection Documents (IEL), when provided with the technical data package (TDP). In the absence of SQAPS the applicable Quality Assurance Provisions of MIL-F-13926 shall
40、apply. 4.3.2.2 First article test.- The test specified in 4.6.14 shall apply only to first article testing. specified in 3.6 (2000 hours MBTF at a 90% confidence level) requires that an oscillator be subjected to a total demonstration testing time of 4600 hours without a failure. To minimize the ove
41、rall test time duration, the table below is provided to permit equivalent testing concurrently for the total cumulative test time of 4600 hours, without a failure, as follows: Testing to demonstrate the reliability , No. Test Items 3 5 10 Cumulative Test Hours 1,533.3 (63.9 days) 920 (38.3 days) 460
42、 (19.2 days) No. Failures Permitted O O O NOTE: Selection of additional oscillators to supplement the first article sample for equivalent testing to determine reliability is permitted. Those additional oscillators will be identified and only subjected to the test in 4.6.14. 4.3.2.3 Final acceptance
43、inspection.- Subsequent to first article approval, examination and tests related to Section 3 herein shall be per- formed on a single defect (individual characteristic) basis in accordance with MIL-STD-105 and the sampling plans specified in Tables II, III, IV and V herein. Examination and tests for
44、 Packaging, Packing and Marking shall be in accordance with MIL-P-14232 and Section 5 herein. The tabulated classification of defects in Tables 11, III, IV and V shall constitute the minimum inspection to be performed by the supplier after first article approval and prior to Government acceptance or
45、 rejection by item or lot. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-0-19850 12 7777906 0277558 5 MIL-0-14850 (MU) TABLE II - CLASSIFICATION OF BEFECTS - CLASS CHARACTERISTIC REQUIREMENT CRITICAL: 100% Inspection 1. Operation (with 5.9 Vd
46、c input, 3.4.1 zero ohm resistance no output put load). . load, 50 pf capacitance of out- MAJOR: AQL 1.077 Defective 101. Vibration 3.3.1 102. Operation 3.4.1 103. Output current 3.4.3 104. Noise level 3.4.4 105. Stray field 3.4.5 106. Moisture-fungus resistance 3.1.1 TEST PROCEDURE 4.6.8 4.6.2 4.6.
47、8 4.6.10 4.6.11 4.6.12 MIL-T-152 MINOR: NONE NOTE: The tests for Characteristics 1 through 106 inclusive shall be con- ducted at a temperature between 60“ and 90F. 4.3.3 Acceptance and rejection.- Rejected lots shall be screened for all defective characteristics. and resubmittance of rejected lots s
48、hall be in accordance with itAcceptance and Rejection“ as specified in MIL-STD-105. Removal or correction of defective units 4.4 Special sampling. 4.4.1 General.- One oscillator shall be selected at random as a special sampling from each 100 produced. and tests in Table III, The sample shall meet th
49、e requirements TABLE III CHARACTERISTIC REQUIREMENT TEST PROCEDURE 301. Fabrica tion 3.1 Applicable drawing - 302. General specification 3-2 vi sua1 visual MIL-F-13926 - 4.4.2 Environmental “Ait.- Three oscillators shall be selected at ran- dom as samples from each 50 produced, or from each months production, which- ever occurs first. Table IV. Each sample shall meet the requirements and tests in Provided by IHSNot for ResaleNo reproduction or netwo
