DLA MIL-PRF-1 924 H-2008 ELECTRON TUBE RECEIVING TYPE 5R4WGB.pdf

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1、AMSC N/A FSC 5960 INCH-POUND MIL-PRF-1/924H 18 June 2008 SUPERSEDING MIL-E-1/924G 15 August 1977 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, RECEIVING TYPE 5R4WGB This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acquiring

2、the electron tube described herein shall consist of this document and MIL-PRF-1. DESCRIPTION: Full-wave rectifier, high vacuum. Outline - See figure 1. Envelope - T14. Cathode - Coated filament. Base connections: Pin No. - 1 2 4 6 8 Element - nc f 2a 1a f ABSOLUTE RATINGS: Parameter: Ef Epp/a epx R1

3、 C1 Unit: V ac V ac V (Note 1) Ohms f Maximum: 5.0 10% - 1,850 - 4 5.0 10% - 2,150 - - 5.0 10% - 2,300 - - 5.0 10% - 2,800 - 4 5.0 10% - 2,900 - - Minimum: - - - - - Test conditions: 5.0 850 - 3,500 4 ABSOLUTE RATINGS: Parameter: Io ib/a tk TE Alt Unit: mA dc mA sec C ft (Notes 4 and 5) Maximum: 275

4、 - 10 260 60,000 275 700 40,000 Note 2 10 260 40,000 165 - 40,000 190 Note 3 10 260 35,000 Minimum: - - - - - Test conditions: - - - - - GENERAL: Qualification: Not required. Reliable tube. Inactive for new design after 21 July 1997 Provided by IHSNot for ResaleNo reproduction or networking permitte

5、d without license from IHS-,-,-MIL-PRF-1/924H 2TABLE I. Testing and inspection Limits Requirement or Test Method MIL-STD-1311Conditions Acceptancelevel note16 Symbol Min Max Unit Conformance inspection, part 1 Stabilization - See note 6 - - - - - Short and discontinuity detection 1201 0.4 - - - - Em

6、ission (1) 1231 Eb = 75 V dc See note 7 0.65 Is 240 400 mA dc Filament current 1301 0.65 If 1.95 2.2 A Operation of rectifiers (1) 1353 Full wave; tk = 10 See notes 8 and 9 0.65 Io 245 260 (bogey) mA dc Conformance inspection, part 2 Barometric pressure, reduced (1) 1002 Pressure = 140 10 mmHg; Ef =

7、 5.0 V ac; Epp/a = 1,050 V ac; full wave; R1/Io = 165 mA dc; tk = 10; C1 = 4 F; Zp/a = 500 ohms; including transformer; See note 10 6.5 - - - - Barometric pressure, reduced (2) 1002 Pressure = 55 5 mmHg; Ef=5.0 V ac; epx = 1,850v; C1 = 4 F; tk = 10; R1/Io = 275 mA dc; Zp/a = 200 ohms; including tran

8、sformer See note 10 6.5 - - - - Low-frequency vibration 1031 No voltages 6.5 - - - - Emission (2) 1231 Ef = 4.5 V ac; Ep = 75 V dc See notes 7 and 11 2.5 Is Ef - 15 % Operation of rectifiers (2) 1353 epx = 2,800 Vac; full wave; Zp/a = 500 ohms; c1 = 4F; tk = 10; R1 = 7,000 ohms - Io 140 - mA dc Alin

9、ement - See note 12 - - - - - Shock 1041 900G; Ef = 5.0 V ac (only voltage applied) - - - - - Vibration fatigue 1031 2.5 G; fixed frequency; F = 25 Hz (min), 60 Hz (max) See note 10 6.5 - - - - Post-shock and vibration fatigue test end point: Operation of rectifiers (1) 1353 - Io 240 - mAdc Provided

10、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/924H 3TABLE I. Testing and inspection - Continued. Limits Requirement or Test Method MIL-STD-1311Conditions Acceptance level note 16 SymbolMin Max Unit Conformance inspection, part 3 Heater-cycling li

11、fe 1506 Ef = 5.5 V ac - - - - - Heater-cycling life test end point: - Intermittent life 1501 Ef = 5.0 V ac; Epp = 750 V ac; C1 = 4 F; adjust R1 to obtain Io = 275 mA dc; tk = 10; TE = 260C See notes 13 and 14 - - - - - Intermittent life test end points (100 hours): - Inoperatives - - - - - - Operati

12、on of rectifiers (1) 1353 - Io 245 - mA dc Blown fuses - See note 15 - - - - - - - - - - - Intermittent life test end points (500 hours): - Inoperatives - - - - - - Operation of rectifiers (1) 1353 - Io 240 - mA dc Blown fuses - See note 15 - - - - - - - - - - - Intermittent life test end points (1,

13、000 hours): Inoperatives - - - - - - Operation of rectifiers (1) 1353 - Io 240 - mA dc Blown fuses - See note 5 - - - - - - - - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/924H 4NOTES: 1. The maximum voltage appearing between any pa

14、ir of pins shall be no greater than the peak inverse anode voltage rating. 2. Input choke filter 5-Henries minimum required for 60 Hz power supply. 3. Input choke filter 10-Henries minimum required for 60 Hz power supply. 4 The tube shall be operated in a vertical position. If mounted in a horizonta

15、l position, pins no. 1 and no. 4 shall be in a vertical plane. 5. Satisfactory operation of this tube under conditions falling within area I may be obtained without preheating the filament. For satisfactory operation under the conditions falling within area II, preheat the filament for 10 seconds be

16、fore the anode voltage is applied. (See figure 2.) 6. Inoperatives shall be defined in accordance with the requirements of method 1201. The product shall be stabilized 100 percent at the following conditions for 6 hours as a full-wave rectifier: Ef = 5.0 V ac; Epp/a= 800 V ac; Zp/a = 100-ohms maximu

17、m; R1 = 2,700; tk = 0; C1 = 4 F. (Under these conditions Io should equal approximately 300 milliamperes dc). Inoperative control is a triple sampling plan performed on all tubes in the lot. The procedure is: All tubes shall be stabilized as explained herein. The lot shall then be tested 100 percent

18、for inoperatives. If the percent inoperative during and immediately following the stabilization period is not more than the acceptance requirements, the lot shall be subjected to the remaining tests. Otherwise, the stabilization operation shall be repeated. The acceptance requirements for the three

19、stabilization operations are 3 percent, 2-1/2 percent, and 2 percent inoperatives, respectively. If the lot does not meet the acceptance requirements after the third test it shall be scrapped. The 6-hour stabilization period includes the “off” time accumulated during cycling of approximately 15 minu

20、tes “on” and 5 minutes “off.” Both filament and anode voltages shall be applied simultaneously at the end of the “off” period. 7. Test each unit section separately. 8. This test to be performed at the conclusion of the holding period. 9. In a full-wave circuit, adjust Zp/a so that a bogey tube gives

21、 an Io equal to 260 mA dc and ib not less than 630 mA per anode. A bogey tube is defined as a tube with a voltage drop of Etd = 75 V dc at Is = 320 mA dc per anode. 10. This test shall be conducted on the initial lot and thereafter on a lot approximately every 6 months. When one lot has passed, the

22、6-month rule shall apply. In the event of lot failure, the lot shall be rejected and the succeeding lots shall be subjected to this test until a lot passes. 11. Preheat tubes with Ef = 5.0 V for 5 minutes minimum prior to testing for Is at EF = 5.0 V. Preheat tubes with Ef = 4.5 V for 5 minutes mini

23、mum prior to testing for Is at Ef = 4.5 V. 12. The plane of the filament shall be parallel to the plane passing through the centerline of pins no. 1 and No. 4 within 22-1/2 degrees. 13. Envelope temperature (TE) requirements, when measured in accordance with the temperature by conduction-band measur

24、ement (MIL-STD-1311 method 1226), will be satisfied if a tube having bogey Etd (10 percent) under normal test conditions, is determined to operate at or above minimum specified temperature at any position in the life-test rack. 14. Intermittent life test. (a) The intermittent life-test sample shall

25、consist of 20 tubes. At the completion of 500 hours (+48, -24 hours), the first 10 serially marked operative tubes shall continue on for the 1,000-hour life test. The 1,000-hour life test shall be conducted on a minimum of 1 sample of 10 tubes each month of production. (b) In the event of failure of

26、 the first sample on intermittent life test, a completely fresh sample of 40 tubes shall be selected. At the completion of 500 hours (+48 hours, -24 hours), the first 20 serially marked operative tubes shall continue on for the 1,000-hour test. (c) Life-test samples shall be selected from a lot at r

27、andom in such a manner as to be representative of the lot. If such selection results in a sample containing tubes which are outside the initial limits of this specification sheet for the relevant life-test end point characteristics, such as tubes shall be replaced by randomly selected acceptable tub

28、es. (d) Serially mark all tubes from the sample. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/924H 5(e) Record referenced characteristic measurements after a maximum operation of 15 minutes under specified voltage and current conditions

29、on the entire sample. (f) The life-test sample shall be read at the following times: 100 hours (+50, -10) 300 hours (+48, -24) 500 hours (+48, -24) 1,000 hours (+48, -24) Additional reading periods may be used at the discretion of the electron tube manufacturer. Tubes which fail to meet the acceptan

30、ce criteria at 100 hours may not be continued further on life test. (g) Acceptance. The lot shall be considered satisfactory for acceptance provided that there are no defectives. (h) A resubmitted lot shall be subjected to all conformance inspection, part 1 tests, except visual and mechanical inspec

31、tion criteria, vibration, and barometric pressure, reduced. (i) Not more than one accidental breakage shall be allowed in the life-test sample. If one life-test tube is accidentally broken, acceptability of the life-test sample shall be based upon the remaining tube in the sample, provided that the

32、broken tube was not known to be defective. 15. A separate SLO-BLO fuse that blows at 1.3 amperes shall be used in each anode circuit. A tube which blows fuses more frequently than once during the 500-hour life test, or twice during the 1,000-hour life test, shall be considered a life-test defect. 16

33、. This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, table III. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/924H 6FIGURE 1. Outline drawing of electron tube type 5R4WGB. FIGURE 2. Rating chart. Di

34、mensions in inches with metric equivalents (min) in parentheses Ltr Minimum Maximum conformance inspection, part 1 A 5.375 (136.53) C 4.813 (122.25) D 1.688 (42.88) 1.813 (46.05) Conformance inspection, part 3 (See Note a) B 2.063 (52.40) E .875 (22.23) F 1.625 (41.28) NOTE a: These dimensions shall

35、 be checked annually. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/924H 7Referenced documents: In addition to MIL-PRF-1, this document references the following: MIL-STD-1311 Marginal notations are not used in the revision to identify cha

36、nges with respect to the previous issue due to the extent of the changes. Custodians: Preparing activity: Army CR DLA CC Navy EC Air Force 85 (Project 5960-2008-057) DLA CC Review activities: Army AR, MI Navy AS, CG, MC, OS, SH Air Force 99 NOTE: The activities listed above were interested in this d

37、ocument as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil/ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-