1、6 9999906 21L053L 27T Parameter: Unit: Maximum: Minimiim. /ziGGq MIL-PRF-III 392D 22 Julv 1999 SUPERSEDING 2 November 1970 MIL-E-I/1392C Ef Ecl Ec2 Ebl Ehk Rgl Alt V Vdc Vdc Vdc Vdc Meg ft 6.9 O, -180 770 8,800 f125 - I/ 60,000 57 - -_- A nn -_ - _ PERFORMANCE SPECIFICATION SHEET ELECTRON TUBES, CAT
2、HODE RAY TYPES 5FP7A, 5FP14A, AND 5FP25 Test condition: This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acquiring the electron tube described herein shall consist of this document and the latest issue of MIL-PRF-1. 6.3 Adjus
3、t 250 4,000 - - _I DESCRIPTION: Magnetic deflection and focus. DIMENSIONS AND PIN CONNECTIONS: See figure 1. ABSOLUTE RATINGS: See footnotes at end of table I. GENERAL: Qualification - Required. AMSC N/A 1 of9 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. FSC 5960
4、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Barometric pressure, irect-interelectrode Bluelorange light ratio Electrode currents Neck and bulb alignment athode illumination Bulb, screen, and Neck straightness Method 1141 1002 5111 1331 - 5201 51
5、 O1 51 O1 5216 1216 51 06 5201 5201 5223 5206 5101 - 5231 5236 MIL-PRF-III 392D TABLE I. Testina and inspection. ts Mm - - 2.0 10.0 11.0 12.0 1.5 50 - - _ - See footnotes at end of table. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Inspection :
6、onformance inmection, - Continued ;rid cutoff voltage ;rid No. 1 leakage current ,perture alignment Iecureness of base, cap, or insert leater or filament current ;ide terminal and base alignment itray light emission (conventional type) icreens ne width “A (magnetic deflection) ne width “C“ (magnetic
7、 deflection) ocusing ampere turns leater-cathode leakage current irid No. 2 leakage current lemanence of marking Method 524 1 525 1 - 1101 1301 51 O1 521 6 522 1 5226 5226 5246 5251 5251 1105 - TYP - All All All All All All All PI4A P7A P25 All P7A P14A P25 P7A P14A P25 All AI1 All All MI L-PRF-1 II
8、 392 D TABLE I. Testing and inspection - Continued. Conditions - 61 ib = 8,800 V dc ic2 = 330 V dc ic2 = 770 V dc ic2 = 770 V dc 3 = 200 pA dc 3 = 200 pA dc I = 25 pAdc 3 = 200 pA dc 3 = 200 pA dc 3 = 25 pA dc 3 = 200 PA dc; = 2.75 inch Acceptance level Inspection level or code Symbol Ecl ICI listan
9、ce - If - - - Width Width Width Width Width Width - - _ - ts Ma -70 3 5 - 660 - _I - 0.50 0.25 0.20 0.60 0.35 0.30 495 - - - Unit - Vdc A dc mm - mA - I_ - mm mm mm mm mm mm I - I I- See footnotes at end of table. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
10、 from IHS-,-,-II 9Ob 2330534 T W Inspection Method onformance inswction, a3 fetest provisions All P14A P7A P25 P7A P14A P25 All All All All All fe-test end points GroupC; t = 500 hours (min) Eb = 8,800 V dc; Ec2 = 330 V dc; Ib = 60 pA dc Eb = 8,800 V dc; Ec2 = 770 V dc Ib = 40 pA dc Line width “A Li
11、ne width “C“ Line width “A“ Line width “C“ Line width “A Line width “C“ Vodulation Heater-cathode leakage current Grid No. 1 leakage current Grid No. 2 leakage current Stray light emission MI L-PRF-1 II 392 D TABLE I. Testina and insoection - Continued. TYP I Conditions 1 ts Max I - - - 0.50 0.60 0.
12、25 0.35 0.20 0.30 38 - - _- - Unit - - - - - mm mm mm mm mm mm V dc - - -_- I - I/ When Ec2 is greater than 330 V dc, Rgl shall not exceed 0.5 Meg. Men Ec2 is less than 330 V dc, Rgl shall not exceed 1.5 Meg. - 2/ A limiting aperture type of gun shall be used. The amount of limiting permitted shall
13、be between 15 and 45 percent when Ib = 200 pA dc and the secondary electron current from the screen to the limiting aperture is zero. The following information and materials shall be made available to the government representative witnessing the qualification inspection measurements: (a) The electro
14、n gun drawing with significant dimensions. (b) A sample of the electron gun to be used in the manufacture of the tubes. (c) A sample tube with suitable connectors to enable measurement of the screen current separately from the limiting aperture current. This sample tube, at the option of the manufac
15、turer, may be one of the four regular qualification inspection samples or a fifth tube. If the sample is one of the four regular qualification inspection samples, it shall pass all tests. If a ffth tube is submitted, it shall pass all electrical tests, but is not required to pass screen quality, and
16、 some of the dimensions. - 3i This test to be performed at the conclusion of the holding period. g/ Displacement of the spot corresponding to the image of the final aperture shall not exceed the limit specified. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
17、rom IHS-,-,-MIL-PRF-I/I 392D TABLE I. mn - Continued. 5/ Blue/oranae liaht ratio. (a) Using tungsten standard luminant A, calibrate Weston Photronic Cell No. 594-R-R, or equivalent, with Corning 4-65 filter, or equivalent, at 1 Gfoot candles. This combination approximates the normal eye response. (b
18、) Set up a 7.1 cm by 7.1 cm defocused raster on the cathode-ray tube under test and adjust the grid potential for a brightness reading of IO-foot lamberts when viewed through a Watten 15 filter, or equivalent, by the Photronic cell and filter previously standardized. (c) Without disturbing the Photr
19、onic cell, replace Matten 15 and Corning 4-65 filters with Coming 559 filter, or equivalent, and again measure the indicated brightness in apparent foot lamberts. The thickness of the filters shall be 2.95 and 5.13 mm, respectively. (d) Calculate blue/orange light ratio as follows: Apparent foot lam
20、berts as measured with Corning 5 - 59 filter, or equivalent 1 O - foot lamberts Bluelorangelight ratio = - 6/ The distance between the center of the unfocused, undeflected spot at low intensity (EcI near cutoff) and the center of the image of the masking aperture observed at high intensity of the un
21、focused, undeflected spot shall not exceed the limit specifiedEc1 should not be held at zero for more than approximately 30 seconds to prevent damage to the screen. - 7/ The standard deflection yoke spacer (see figure 2) shall be placed on the tube neck so as to fit tightly between the cone of the g
22、lass envelope and the standard 70“ deflection yoke, JEDEC-120. Focus coil No. 109 shall be located in the same position with respect to the deflection yoke as for other tests made without the spacer. The electron beam shall be deflected by means of horizontal and vertical deflection waveforms adjust
23、ed in magnitude to overscan the useful screen area; if there is no neck shadow the raster shall display 35 to 100 lines. Increase the focus current until the raster passes to a defocused condition with the raster lines overlapping while the ends of the lines become abruptly terminated producing a di
24、sk pattern approximately circular in shape having a circumference in sharp focus. Neck shadow will be evident as an outer annular ring or shadow where the electron beam does not reach the screen. The focus coil shall be oriented to make the annular ring symmetrical with the tube face. The minimum di
25、ameter of the disk pattern shall be equal to or greater than the specified limit. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-I/I 392D SEE NOTE 2 E - I i i j i j O CI, C SEE NOTE 4 - CONTACT N NOTE 6 FIGURE 1. Outline drawina of electro
26、n tube tvpec 5FP7A. 5FP14A. and 5FP25. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-L/L392D H 0b 2LL0537 798 m All All All All All All MIL-PRF-III 392D E 1 .O00 25.40 J 24.000 Rad 609.60 Rad K 10.000 Rad 254.00 Rad L .125 Rad 3.18 Rad M
27、,906 Rad 23.01 Rad P .812 20.62 Dimensions Inches Millimeters All I S I Contact: JI-22 Reference dimensions Z/ NOTES: 1. Unless otherwise specified, all dimensions are in inches. 2. Minimum useful screen radius. 3. Determined by point where gauge GI24 will stop. 4. Applies to entire length of neck b
28、elow reference line. 5. Axis of contact terminal shall be normal to bulb surface. 6. Allowable deviation from true position on center line. 7. Reference dimensions are for information only and are not required for inspection purposes. FIGURE 1. Outline drawina of electron tube Woes 5FP7A. 5FP14A. an
29、d 5FP25 - Continued. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-lI1392D I EL-:Ai MATERIAL-SYNTHANE NOTE: Ali dimensions are in inches. FIGURE 2. Neck shadow test standard deflection yoke macer 5FP14A and 5FP7A). 8 Provided by IHSNot fo
30、r ResaleNo reproduction or networking permitted without license from IHS-,-,-Custodians: Amiy - CR Navy - EC Air Force - 11 DIA - CC NIL-PRF-L/L392D II 999990b 2LL0539 560 Preparing activity: DIA - CC (Project 5960-3546-1 7) Review activities: Navy -AS, CG, OS Air Force - 19, 99 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
