1、 MIL-PRF-L/849G 999990b 20bLqLb 126 Parameter: Ef if(surge) k tPc ib Pi a kw Unit: V a SBC cis Maximum 13.7 lo - 3.3 16.0 250 Minimum _I_ .- 120 I 14.0 - I INCH-POUND I MIL-PRF-lB49G 11 March 1998 SUPERSEDING 20 February 1976 MIL-E-11849F Pi VSWR W - 250 151 - -. PERFORMANCE SPECIFICATION SHEET ELEC
2、TRON TUBE, MAGNETRON TYPE 6543 Parameter: Unit: Maximum Minimum 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-I. T
3、uner drive toque T (anode) T (input bushing) Altitude in.oz “C “C R 50 150 175 10,000 - -65 -65 - DESCRIPTION: Pulsed, tunable frequency range 8,500 to 9,600 MHz, rated peak power ouiput 65 kw. integral magnet. ABSOLUTE RATINGS: Dimensions: See figure 1 Cathode: Mounting support: Mounting Range Magn
4、et: Weight: Mounting position: hY Marking: GI Handling: Unipotential 6 pounds 2 ounces (approx) 41 - 41 ABSOLUTE RATINGS: AMSC NIA 1 Of 14 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. FSC 5960 Provided by IHSNot for ResaleNo reproduction or networking permitted w
5、ithout license from IHS-,-,- MIL-PRF-L/49G = 99999Ob 2ObLl17 Ob2 Parameter: Unit: Maximum Min i m u m Ef V - 10.4 _- MIL-PRF-11849G Parameter: Ef tpc mr Du Ib kVIps _- mA dc Unit: V PS Maximum 3.30 _- _ _- 7.8 _ -_-_ 0.001 15.0 Minimum -. 3.10 120 21 -_- F1 = 8.500 MHz F2 = 8.600 MHz F3 = 9.000 MHz
6、F4 = 9,375 MHz F5 = 9,600 MHz VSWR -_ 1.10 - I 0.40 _ 0.35 mr kVlps GENERAL: Qualification - Required. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-118496 TABLE I. Testinq and insoection. No voltage applied; 15G; I= 11 ms No voltages app
7、lied No vdtages applied Inspection Qualification insoection vibration /anable-1 requency Shock, specified pulse TA = 25C F = 9,550 i 50 MHz runer stop endurance Mechanical tuning fatigue T (ande) = 70“ i 10C F=FltOF5 Ib = 4.0 and 5.0 mA dc Ib = 13.5 and 16.5 mA dc Ib = 4.0 and 5.0 mA dc F = F1, F3,
8、F5 F = F1 to F5; 3perating torque or force Resetiability Direct-interelectrode capacitance Tuning rate RF bandwidth Minor lobe ratio Mechanical tuning rate Barometric pressure, Temperature coefficient reduced Low-temperature Forced cooling operation Conforniance insDection. Pressurizing Heater curen
9、t Operating toque or force Mechanical tuning range jee footnotes at end of tab16 - 1031 1042 4223 4223 4223 4223 4266 4223 4308 4308 4223 4028 4027 1047 1143 - 4003 4289 4223 4223 - Conditions VCWR = 1.5:l; pressure T(anode) = 70“ to 100C; F=F3 tk = 120 s8c (max); F=F3 = 500 mHg (absdute) 40 to 45 p
10、sia, input and output assemblies (max) Ef = 12.6v tk= 120- TA = 25 f 5% T(anode) = 70“ i 10C Upper limit Lower limit $mtld - I rorque .- roque AF C AF BW BW Ratio - .- A FIAT MP T - If Toque F F - Unit - - - in.-az Cycles in. oz MHz PF MHz MHz MHz dB - -_ MWC % %(rise I- A in.oz MHz MHz 3 Provided b
11、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- UIL-PRF-L/84G Ob 20bLL9 335 = MIL-PRF-1l849G TABLE I. Testinq and inspection. Inspection Conformance inwection, - Continued RF bandwidth Minor lobe ratio Stability Starting stability Pulse voltage Power output I
12、 Conformance incoection, Dart2 Variable-frequency vibration Operating torque or force Resettability Frequency pulling figure Power output Heater-voltage sensitivity Conformance inspection, Life test Life-tests end points: Power output RF bandwidth Minor lobe ratio Stability Resettability See notes a
13、t end of table. Method 4308 4308 431 5 431 5 4306 4250 1031 4223 4223 4310 4250 -_ -_ 4250 4308 4308 431 5 4223 Notes _- 151 161 211 - _ 151 231 - 5/21/23 -. 1 2 1 1,2 2 2 2 Conditions F = F1 to F5 F = F1 to F5 F = F1 to F5 F= Fl F = F5 t = 300 (max); F = F1, F3, F5 No voltages applied TA = -50C TA
14、= +125“C; no voltages applied F = 9,550 f 50 MHz F = F1 to F5. in 100 MHz increments F= F1 to F5 Group C; VSWR = 1.5:l (min) Symbol BW BW Ratio MP MP ePY Po Torque Toque AF AF Po _- -_ t Po BW Ratio MP AF L Ma P.O/tpc 3.Oitpc 1 .o 1 .o 16.5 _ Unit MHz MHz dB Ye % kv W _- in.-oz in.-oz MHz MHz W _ -
15、Sycles hrs w MHz dB % MHz - 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/8llG 9Ob 20bL20 b57 TABLE I. Testina and inspection - Continued. - 1/ Unless otherwise specified, the acceptance level for all tests listed under conformance insp
16、ection, part 1. shall be 1 .O, inspection level II. - 2/ 10 to 55 to 10 Hz. Vibrate from 1 to 3 minutes at 10 G or 0.60-inch (1.53 mm) double amplitude; repeat for a total of 90 minutes in each of the three muhially perpendicular axes. Vibrate for 30 minutes at each of the resonant frequencies noted
17、. - 31 VSWR cycled through kg in about 30 minutes: starting at 8,500 MHz, the frequency shall be increased in 100 MHz increments every 10 hours. - 4/ In handling and mounting the magnetron, care shall be exercised to prevent demagnetization. - 5. Immediately after a nonoperating period of 168 hours
18、minimum, the starting stability test shall be performed on 100 percent of the submitted lot. - 6/ After subjection to the specified test, the tube shall meet the requirements for RF bandwidth, minor lobe ratio, and stability as specified under test condition 1. - 7. Separate samples shall be require
19、d for this test. &/ The tubes shall be fastened rigidly to the vibration plaform and vibrated with simple harmonic motion. The direction of vibration shall be as indicated on figure 1. - 9/ The tuning mechanism shall withstand the specified toque at the limits of mechanical motion. - 1 O/ The toque
20、required to operate the tuning shaft through the specified tuning range shall not exceed the maximum specified. - 1 1 I The tuner shall operate for at least the specified number of cycles. The tube shall then meet all of the conditions of test condition 2 and the toque and backlash at room temperatu
21、re shall not exceed the specified amount. One cycle is defined as a complete traverse from one end of the tuning range to the other and back again. During this test the tuner may be lubricated not more than once every 1,000 cycles with Texaco low-temperature grease No. 1,888, or equivalent. - 12/ Al
22、ter the specified number of cycles, the tube shall pass all the tests under test condition 2 in conformance inspection, pari 1. - 13/ The frequency obtained by tuming the tuner to a given setting in one direction shall be reproducible within specified limits when returning to that same setting from
23、the opposite direction after thermal equilibrium. - 14/ After thermal frequency stability has been reached at each of the frequencies of this test, F1, F2, F3, F4, F5 (see Lq, the cum of frequency versus tuner position shall not deviate more than the specified amount from the curve on figure 2. - 15
24、1 This test shall be perfomed by a continuous observation while the tube frequency and a stub having a VSWR of 1.5:1 minimum are continuously varying. The stub shall travel a minimum of 180 electrical degrees for every 20 MHz of magnetron tuning. - 16/ The measurement shall be made throughout the sp
25、ecified tuning range at a rate sufficiently slow to permit steady-state indications. At no place in the specified tuning range shall the specified limits be exceeded. - 17/ With the tuning dial adjusted for a frequency of 9,OOO MHz, an operating frequency of 9,600 MHz shall be obtained by clockwise
26、rotation of the designated end of the tuning shaft 68 k 12 turns. A frequency of 8,500 MHz shall be attained by tuming the shaft 49 I 6 turns in the opposite direcon from the 9.OOO MHz setting. - 18/ With the specified input pressurization, or output pressunzaon. or both. there shall be no evidence
27、of breakdown in the input assembly, or output assembly. - 19/ The missing pulses (MP), due to any causes, are considered to be missing If the RF energy is less than 70 percent of the normal energy level in the frequency fange of 8,900 to 9,100 MHz. The VSWR shall be adjusted to that phase producing
28、maximum instability and the MP counted during the last 3 minutes of a Cminute test penod. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-PRF-L/849G D 9999906 2063923 593 M MIL-PRF-11849G TABLE I. Testinq and inspection - Continued. - 20/ An a
29、irflow of 10 cubic feet per minute (cfm) at approximately 760 mmHg shall be directed on the cooling fins from an orifice 2-1/2 inches by 1-3/16 inches (63.50 mm by 30.16 mm). Temperature of the anode shall be measured, and the rise shall not exceed the amount specified. - 211 The tube shall be opera
30、ted into a transmission line with a VSWR of 151 minimum adjusted in phase to produce the maximum spectrum degradation. - 22/ The m shall be expressed in kv per ps defined by the steepest tangent to the leading edge of the voltage pulse above 80 percent amplitude. Any capacitance used in viewing syst
31、em shall not exceed 6.0 pF. No spike or ripple shall exceed +7 percent of the average peak value of voltage or current. Inverse voltage shall not exceed 20 percent of the forward voltage. The negative amplitude of any post pulse voitage oscillation shall not exceed 1 O percent of the average peak va
32、lue. - 231 The VSWR shall be adjusted to the phase producing maximum instability and the MP counted for a period of 3 minutes starting 30 seconds after application of high voltage. - 241 In addition to regular markings, letters and dial settings shall be stamped on the tube at the point specified on
33、 figure 1, to indicate F1 through F5 ? 1 O MHz at the start of life under test condition 2 conditions with the body temperature 70“ 1 0C. - 251 All of the requirements of test conditions 1 and 2 shall be met with the heater voltage at +8 percent from the voltage specified for test. Z/ Life test shal
34、l be run with heater power frequency set at the major resonant frequency, if any, as detenined by the heater structure type test, provided the resonant frequency occurs at 55 to 65 Hz or in the interval 340 to 1,800 Hz. If there is no such resonant frequency, heater power may be at any convenient fr
35、equency up to 1,800 Hz at the discretion of the manufacturer. To measure the resonant frequency, one of the two following methods shall be used: (a) Supply the specified preheating voltage to the tube heater from a variable frequency power supply. Vafy the supply frequency while listening (with a se
36、nsitive stethoscope) for any indication of resonance. At the resonant frequency distinct vibration of the structure will be heard. (b) Supply heater voltage to the tube from a variable frequency supply. Operate the tube (test conditions 1) and observe the RF spectrum while varying the frequency of t
37、he heater voltage. At the resonant frequency of the heater cathode structure, large values of the frequency modulation will be observed. - 27i Life test shall be conducted in accordance with the following cycie: Test condition Duration bI 2 3 minutes Standby 15 minutes off .- 16 minutes - 28/ If dur
38、ing life test the lube does not meet the specified limits, it shall be recycled for an additional 5 cycles. At such time the test shall be repeated. If the tube fails the second test, it shall be considered unsatisfactory. - 29/ At each of the dial settings called for in %/, the measured frequency s
39、hall not differ from the stated frequency by mre than the amount specified. - 301 5 G or DA = .O1 inch, whichever is limiting value. Vibration frequency = 5 to 500 to 5 Hz varied uniformly over complete range in 15 minutes, repeat for a total of 2 hours in each of three axes. - 311 Duration of each
40、cycle = 45 seconds (maximum). - 32/ For vibration tests, axes of vibration shall be reference axes “A“, “B“, and %“. - 33/ Reference point for anode T measurements locate where a central fin meets the anode block near the output section. . 6 Provided by IHSNot for ResaleNo reproduction or networking
41、 permitted without license from IHS-,-,-I W DETAIL A IWUT CONWCTOR FIGURE 1. Outline drawina of electron lube We 6543. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Ltr I Conformance insDection. Dart 1 (see note 1) I Dimensions Inches Millimeters
42、 Min I Max I Min I Max IA1 I 5.938 I I 150.83 1 B C 3.232 82.09 2.094 2.219 53.19 56.36 AJ A2 BA 2.984 3.01 6 75.79 76.61 ,671 ,681 17.04 17.30 1.188 30.18 BK I ,516 1 I 13.11 I BL I I .200 1 I 5.08 BH BJ ,164 .174 4.17 4.42 .750 19.05 1 BP I .115 I .135 I 2.92 I 3.43 I BM BN Reference dimensions 2.
43、781 1.625 DIA 41.28 DIA 1.156 RAD 29.36 RAD 1.830 46.48 1 .125 ,187 I 3.18 4.75 .lo9 .141 I 2.77 3.58 IAAI .922 I 23.42 I AD AE AF 1.122 28.50 A97 12.62 .984 24.99 FIGURE 1. Outline drawina of electron tube ivue 6543 - Continued. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted
44、 without license from IHS-,-,-M IL-PR F- 1 l849G K P AH k-P-4 SEE NOTE 6 1.391 35.33 1.265 32.13 .375 RAD 9.53 RAD BOTTOM VIEW Dimensions Millimeters Conformance inspection, part 1 (see note 1) 3.625 92.08 2.521 64.54 1.875 DIA 47.63 DIA 2.425 61.60 J 3.203 81.36 L .178 .258 4.52 6.55 MI .422 I I 10
45、.72 01 2.771 1 2.791 I 70.38 I 70.89 I 1 I I Conformance inspection, part 2 BQI I .125 I I 3.18 I Reference dimensions I FIGURE 1, Outline drawina of electron tube twe 6543 - Continued. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I i /- I t OF
46、SU RFA C E “ D NAVEGUIDE f SEE NOTE 5 . AS 1 AP DETAIL A SHAFT END FIGURE 1. Outline drawina of electron tube tvw 6543 - Continued. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Ltr FIGURE 1. Outline drawina of electron tube me 6543 - Continued.
47、 11 Dimensions Inches Millimeters Min Max Min Max Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-l/849G D 9999906 2063927 TO3 D NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9. 70. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. MIL-PRF-11849U Gold, silver, or nic
48、kel plate over full extent of maximum plug penetration. Maximum projection of the tubulation shall not extend more than 0.125 inch (3.18 mm) beyond the centerline of the two mounting holes on the side opposite the waveguide Range. Reference point for anode T measurements locate where a central fin meets the anode block near the output section. Ail metal surfaces shall be painted except those designated “S“ and “D“. Surfaces designated “s“ shall be gold, silver, nickel, or bright alloy plated, or brass surfaces except as specified. Hermetic connections may be made to
