1、 MIL-PRF-1/1048D 3 February 2012 SUPERSEDING MIL-PRF-1/1048C 27 August 1999 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, CATHODE RAY TYPES 5AFP1 AND 5AFP7 This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the electro
2、n tube described herein shall consist of this document and the latest issue of MIL-PRF-1. DESCRIPTION: Dual beam, post-accelerator, flat face, electrostatic focus and deflection. PIN CONNECTIONS AND DIMENSIONS: See figure 1. ABSOLUTE RATINGS: Parameter: Unit: Ef V Ec1 V dc Eb1 V dc Eb2 V dc Eb3 V dc
3、 ed v Rg Meg Zd Meg Ehk V dc Eb3/Eb2 Ratio Alt ft Maximum: Minimum: 6.9 5.7 0, -200 - 1,750 - 3,500 1,000 1/ 10,500 1,000 750 - 1.5 - 1.0 - 2/ 180 - 3.0 - 3/ 5,000 - Test conditions: 4/ 6.3 Adjust Focus 2,000 4,000 - - 1.0 - 2.0 - See footnotes at end of table I. _ GENERAL: Qualification: Required.
4、This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, table III. AMSC N/A FSC 5960 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1048D 2 TABLE I. Testing and inspection. Inspection Method MI
5、L-STD-1311 Conditions Symbol Limits Unit Min Max Qualification inspection Base material insulating quality 1216 - - - - Neck and bulb alignment (electrostatic types) 5101 Dia - 3.31 inch Face lift 5101 - - - - Cathode illumination 5216 - - - - Barometric pressure, reduced 1002 87 mmHg 6/ - - - - Pre
6、ssure (implosion) 1141 - - - - Vibration 5111 Width - 1 mm Direct-interelectrode capacitance 1331 12/ k to all g1 to all D1 to D2 D3 to D4 D1 to all D2 to all D3 to all D4 to all Ck Cg1 C1D2 C3D4 CD1 CD2 CD3 CD4 - - - - - - - - 4.6 4.0 2.0 1.4 5.0 5.0 4.1 4.1 pF pF pF pF pF pF pF pF Deflection-facto
7、r uniformity 5248 1D2 3D4 - - - - 2 3 % % Interaction factor 5250 - - 14 x 10-6 inch/V dc Magnetization 5256 - - - - Conformance inspection, part 1 Voltage breakdown 5201 - - - - Voltage breakdown (electrostatic types) 5201 - - - - Gas “cross“ 5206 lb3 = 50 A dc 5/ - - - - Modulation 5223 Ib3 = 25 A
8、 dc Ec1 - 35 V dc Spot position (electrostatic deflection) 5231 - - 15 mm Spot displacement (leakage) 5231 Displ - 10 mm Grid cutoff voltage 5241 Eco -45 -75 V dc Tracking - 9/ - - 1.5 % Useful scan - 1D2 10/ 3D4 10/ - - - - 4 4 inch inch See footnotes at end of table. Provided by IHSNot for ResaleN
9、o reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1048D 3 TABLE I. Testing and inspection - Continued. Inspection Method MIL-STD-1311 Conditions Symbol Limits Unit Min Max Conformance inspectio part 1 - Continued Pattern distortion 5103 11/ - - 2 % Grid No. 1 leakage curr
10、ent 5251 - - - - Anode No. 1 leakage current 5251 lb1 - 3 A dc Anode No. 2 leakage current 5251 - - - - Light output (P1) 5221 Ib3 = 25 A dc 5/ Light 20 - fL Conformance inspection, part 2 Heater current 1301 If 540 660 mA Electrode currents (Anode No. 1) 5201 lb1 -10 5 A dc Electrode current (catho
11、de) 5201 lb3 = 50 A dc lk - 600 A dc Base alignment (electrostatic types) 5101 +3D4, base key, collar index pin - - - - Collar base alignment - +3D4, collar index pin - - 10 Degrees Side terminal and base alignment 5101 Base key, collar index pin - - - - Side terminal alignment (electrostatic types)
12、 5101 +3D4 - - - - Neck and base alignment (electrostatic types) 5101 - - - - Screen (P7) 5221 5/ - - - - Line width B (electrostatic deflection) 5226 lb3 = 25 A dc Width - 0.69 mm Focusing voltage at modulation condition 5246 Eb1 - 610 V dc Angle between traces 5101 - 89 91 Degrees Bulb, screen, an
13、d faceplate quality 5106 - - - - Trace alignment (gun to gun) - 7/ - - - - Stray light emission (conventional types) 5216 Eb2 = 3,500 V dc; Eb3 = 10,500 V dc - - - - See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P
14、RF-1/1048D 4 TABLE I. Testing and inspection - Continued. Inspection Method MIL-STD-1311 Conditions Symbol Limits Unit Min Max Conformance inspection, part 2 - Continued. Line width A (electrostatic deflection) 5226 lb3 = 25 A dc Width - 0.65 mm Focusing voltage at cutoff 5246 Eb1 - 610 V dc Deflect
15、ion factor 5248 1D2 8/ DF 54 66 V dc/inch Deflection factor 5248 3D4 8/ DF 43 53 V dc/inch Deflection factor 5248 1D2; Eb3 = Eb2 = 2,000 V dc DF 43 55 V dc/inch Deflection factor 5248 3D4, Eb3 = Eb2 = 2,000 V dc DF 36 44 V dc/inch Heater-cathode leakage current 5251 Ihk - 15 A dc Secureness of base,
16、 cap, or insert 1101 - - - - Base pin solder depth 1111 - - - - Permanence of marking 1105 - - - - Conformance inspection, part 3 Life-test provisions - Group C; t = 500 hours (min); Ib3 = 25 A dc; Eb2 = 3,500 V dc; Eb3 = 10,.500 V dc - - - - Life-test end points - Ib3 - 18.75 A dc Modulation Line w
17、idth A Line width B Grid No. 1 leakage Anode No. 2 leakage Heater-cathode leakage Anode No. 1 leakage Stray emission Ec Width Width - - - - - - - - - - - - - 35 0.65 0.75 - - - - - V dc mm mm - - - - - See footnotes at top of next page. Provided by IHSNot for ResaleNo reproduction or networking perm
18、itted without license from IHS-,-,-MIL-PRF-1/1048D 5 TABLE I. Testing and inspection - Continued. 1/ Accelerator average power input shall be limited to 6 watts. Grid No. 4 and grid No. 2 are connected internally and referred to herein as accelerator. This shield and the accelerator electrodes shoul
19、d be connected together under normal operating and test conditions. However, the accelerator as well as the first ring of the post-deflection accelerating system may be operated at slightly different potentials for astigmatism control if desired and the shield potential should then be adjusted for o
20、ptimum performance. 2/ Deflection electrode circuit resistances should be equal. Higher resistance values up to 5.0 Meg may be used for low-beam current operation. 3/ This tube is designed for optimum performance when operating at an Eb3/Eb2 ratio of 2.0. Operation at other ratios of Eb3/Eb2 may res
21、ult in changes in deflection uniformity, pattern distortion, and tracking. 4/ All tests except capacitance, vibration, tracking, cathode illumination, stray emission, and interaction factor shall be made on each unit separately. Each deflection plate shall be connected to A2 through a resistance of
22、1 Meg. 5/ This test to be performed at the conclusion of the holding period. 6/ Maximum potentials applied to base, deflection plates, and A2 only. 7/ Corresponding traces of each unit shall be within 1 of each other. 8/ The ratio of the deflection factors of corresponding deflection electrodes shal
23、l not exceed 1.15. 9/ The focused spots of both guns shall be moved by means of a common dc voltage along the 1D2 axis until the spot of gun A is at 1 inch from the geometrical center of the tracking area. Then by means of a small correction voltage, the spot of gun B shall be moved to the same dist
24、ance. The spots then shall be moved by means of the common dc voltage in the opposite direction from the geometrical center until the spot of the less sensitive gun reaches -1 inch. The difference in deflection factor of the more sensitive gun is then compensated for by moving its spot back to -1 in
25、ch by means of a voltage divider. This entire procedure is to be duplicated along the 3D4 axis. Then by means of the two common dc voltages, the spots shall be tracked over the entire tracking area, a 4-inch diameter circle centered with respect to the tube face center, and the greatest distance bet
26、ween the spots shall not exceed the limit specified. 10/ Centered with respect to the tube face and with the tube shielded. 11/ With a raster pattern, adjusted so its widest points just touch the sides of a 3.060-inch square, will fall within the area bounded by the 3.060-inch square and an inscribe
27、d 2.940-inch square. 12/ All other electrodes contained within the envelope are to be tied together. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1048D 6 FIGURE 1. Outline drawing of electron tube types 5AFP1 and 5AFP7. Provided by IHSNo
28、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1048D 7 NOTES: 1. Shield (collar pins 4 and 11) is common to both beams. 2. Minimum useful screen diameter. FIGURE 1. Outline drawing of electron tube types 5AFP1 and 5AFP7 - Continued. Ltr Dimensions Inches M
29、illimeters Min Max Min Max Conformance inspection, part 2 A 5.16 5.37 130.97 135.73 B 4.50 - 114.30 - C 2.94 3.06 74.61 77.79 D 18.00 18.50 457.20 469.90 E 12.00 12.50 304.80 317.50 F 7.75 8.25 196.85 209.55 G 3.44 3.94 87.31 100.01 H 4.25 4.375 107.95 111.13 J - .125 - 3.18 Conformance inspection,
30、part 3 (periodic check) K Envelope: J42R1, J42S1 L Contact: J1-22 M Collarbase: A12-94 N Base: B12-37 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1048D 8 Referenced documents. In addition to MIL-PRF-1, this specification sheet reference
31、s MIL-STD-1311. The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are ca
32、utioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 85 Project (5960-2011-025) DLA - CC Review activities: Navy -
33、 AS, CG, MC, OS Air Force - 19 NOTE: The activities listed above were interested in this document 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 https:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
