1、 MIL-PRF-1/1712D 16 June 2003 SUPERSEDING MIL-PRF-1/1712C 20 April 1998 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, TRAVELING WAVE TYPE D0D-039 * This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acquiring the electron tube
2、 described herein shall consist of this document and the latest issue of MIL-PRF-1. DESCRIPTION: Forward-wave amplifier, 2.9 to 3.1 GHz operation, 4 kw peak power output, cathode pulsed, periodic- permanent magnet focused. ABSOLUTE RATINGS: 1/ 2/ 3/ 4/ Parameter: Ef If (surge) ik ek Pd Pp Du tp tk A
3、lt (operating) Unit: V A a kv W W - s sec ft Maximum: 6.6 10 2.1 -9.5 2 750 0.03 40 - 10,000Minimum: 6.0 - 1.5 -8.5 - - 0.007 5/ - 5/ 180 - ABSOLUTE RATINGS: 1/ 2/ 3/ 4/ Coolant Coolant inlet temp Coolant Coolant Parameter: flow rate Water EG and W pressure pressure drop TA F Unit: GPM C C psig psig
4、 C GHz Maximum: 0.5 62 14 200 15 -54 F3Minimum: 0.45 - - - 10 +65 F1 PHYSICAL CHARACTERISTICS: Dimensions: See figure 1 Marking: 4/ DC connectors: See figure 1 Construction: Metal and ceramic RF connectors: See figure 1 Weight: 11 pounds, (5 kg) maximum Cooling: Liquid 6/ Mounting position: Any Focu
5、sing: Periodic permanent magnet Shelf life guarantee: 7/ _ TEST CONDITIONS: 4/ 8/ Frequncy Parameter: Ef Pd Du tp tk F F GHz Unit: V W - - s sec GHz 1 2.9 Tolerance: - max min - 1 min - 2 3.0 6.3 0.7 1.1:1 0.03 37 180 F2 3 3.1 GENERAL: Qualification: Required. _ * Replaces Varian type VAS - 805T7, I
6、TT Gilfillan Part or Identifying Number (PIN)s 145005-1, 145005-2, and tube type 8742. AMSC N/A 1 of 8 FSC 5960 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
7、-,-MIL-PRF-1/1712D 2 TABLE I. Testing and inspection. Limits Method Requirement or test Notes Conditions Symbol Min Max Unit 1011 1027 - 1042 4258 Qualification inspection Humidity Temperature cycling (nonoperating) Vibration Shock Radio interference shielding 9/ 10/ 11/ 12/ 12/ 13/ No voltages appl
8、ied TA = -54C to +75C; 5 cycles Test condition A; 6 shocks (see figure 1) - - - - - - - - - - - - - - 1.0 - - - - mW/m21136 Rough handling 9/ - - - - 4289 1256 1261 4214 4253 4254 4253 4261 - 4256 4257 1155 - Conformance inspection, part I Heater current (nonoperating) Electrode current (cathode) El
9、ectrode voltage (cathode) Cathode emission Gain (large signal) Saturated rf power output Gain variation (large signal) Spurious output or stability Stability Input and output match (cold) Amplifier insertion loss Coolant pressure drop versus coolant flow Coolant pressure 14/ - 15/ 5/ 16/ 17/ 17/ 17/
10、 18/ 19/ 20/ 21/ - 6/ - Ef = 6.3 V tk1 = 250; tk2 = 300 F1 through F3 F1 through F3 F1 through F3 F1 through F3 F1 through F3 F = F2 Inlet temperature = 62C (max); flow rate = 0.5 GPM If ik ek ik Gls po Gls spo - VSWR Li P p 2.0 1.54 -8.5 - 37.55 4.0 - - - - 50 10 - 4.0 1.90 -9.5 0.1 - - 1.0 -40 - 2
11、.2:1 - 15 200 A A kv a dB kw dB dB - - dB psig psig 4278 1105 Conformance inspection, part 2 Phase shift Permanence of marking 22/ - ek = 50 v /ek - - - 0.3 - deg/v - See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-
12、PRF-1/1712D 3 TABLE I. Testing and inspection - Continued. Limits Method Requirement or test Notes Conditions Symbol Min Max Unit - - 4254 Conformance inspection, part 3 Life test Life-test end point: Saturated rf power output 7/ 8/ 3/ 17/ 23/ Group D t po 1,000 3.6 - - hrs kw 1/ In addition to the
13、MIL-PRF-1 symbols, the following shall apply: EG and W .Ethylene glycol and water GPM .Gallons per minute P .Pressure ppm.Parts per million psig .Pounds per square inch, gauge ekChange in cathode pulse voltage P .Pressure drop Change in phase 2/ Cathode and one leg of heater shall be connected inter
14、nally. The helix is operated at ground potential. All voltages are referred to ground except the heater potential which is referred to the cathode. 3/ The tube shall satisfy all requirements of this tube specification sheet (TSS) when tested in a line type modulator (figure 2 or equivalent), employi
15、ng a pulse transformer (ITT Gilfillan PIN 160020, or equivalent). The line type test modulator shall utilize a pulse forming network whose impedance is within 10 percent of that shown on figure 2. 4/ A copy of the critical performance characteristics including operating voltages shall be shipped wit
16、h each tube. The operating voltages shall also be clearly indicated on the tube label and on a small decal at the collector end of each tube. Each tube delivered on the contract shall operate optimally under a single combination of discrete voltages which fall within the ranges shown under absolute
17、ratings. All operating requirements of this TSS shall be met under these specific voltages. 5/ The pulse duration (tp) shall be defined as the time interval between the first and the last instants at which the instantaneous amplitude reaches 90 percent of the peak pulse amplitude. The combination tr
18、ansition period of rise and fall times of the pulse, between the 30 and 90 percent amplitude points, shall not exceed 5.0 s with a duty cycle of 0.03. 6/ Distilled water with a maximum inlet temperature of +62C shall be used with, (1) specific resistivity maintained greater than 0.5 megohm, (2) oxyg
19、en content maintained less than 0.5 ppm, (3) an organic filter, and (4) a 3 to 4 micron filter at ambient temperatures in excess of +4C. A 60 percent ethylene glycol and 40 percent distilled water solution, by volume, with a maximum inlet temperature of +14C, with the same resistivity, oxygen conten
20、t, and filters shall be used at ambient temperatures of +4C and lower. 7/ The tubes tested and acquired in accordance with this TSS shall be capable of shelf-life for a period of 12 months after date of shipment from the manufacturers plant. Tubes placed in operation during this shelf-life period sh
21、all meet all requirements of this TSS. Tubes found to be defective, within the shelf-life period, shall be replaced by the manufacturer at no cost to the Government or its contractors. 8/ The tube shall be operated in the saturated mode. Test condition shall be defined as operation with power input
22、of not more than 0.7 watt peak and the cathode operated at the optimum voltage. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1712D 4 TABLE I. Testing and inspection - Continued. 9/ After the performance of the humidity and rough handling
23、 tests, the tube shall be capable of passing the following conformance inspection tests: Method Test 4253 Gain (large signal) 4261 Spurious output or stability 4278 Phase shift 10/ At the conclusion of this test, the tube under test (TUT) shall be capable of satisfying the requirements of conformanc
24、e inspection, parts 1, 2, and 3 tests. 11/ The tube shall be rigidly mounted to the vibration table and shall be vibrated in accordance with MIL-STD-167-1, type I, Environmental vibration, except the amplitudes shall be as indicated below. The detected output of the tube shall be displayed on an osc
25、illoscope. Prior to vibration, the oscilloscope shall be calibrated in the dc mode, using slow sweep, by means of a precision attenuator. The face of the display tube shall be marked with lines corresponding to the saturated power output level, and to levels of 0.5 dB. The attenuator shall then be r
26、eturned to the saturated power output level. The displayed variations attributable to vibration shall be within the calibration lines. Frequency Amplitudes 5 to 15 Hz 0.075 0.012 (0.150 total displacement) 15 to 25 Hz 0.050 0.008 (0.100 total displacement) 25 to 33 Hz 0.025 0.004 (0.050 total displa
27、cement) 12/ The tube shall exhibit interruptions or discontinuities in power output and shall be capable of satisfying all conformance inspection tests without damage or failure before and after performance of the specified test. 13/ The power density shall be measured over the frequency range 0.8 t
28、o 12.9 GHz at a distance of 1 meter from the tube in the three principal planes for both horizontal and vertical polarization. The input signal level shall be the minimum required to saturate the tube over the frequency range F1 to F3. 14/ Unless otherwise specified, the acceptance level for all tes
29、ts listed under conformance inspection, part 1, shall be 1.0, (see 24/). 15/ The cathode current shall be measured at the optimum cathode voltage (label value) with a pi (rf) of 0.7 watt maximum, and shall be such that the effective beam Z is within 4,987 to 5,513 ohms. 16/ The change in cathode cur
30、rent (ik) shall be the difference between ik1 and ik2 (corresponding to tk1 and tk2) and shall not exceed the maximum specified. 17/ A swept-frequency technique may be used for this measurement at intervals not to exceed 20 MHz intervals. 18/ The gain variation (large signal) shall be the difference
31、 between the maximum gain and the minimum gain at the specified test frequencies. 19/ The input of the tube shall be terminated with a matched load, and the output shall be connected to a +10 dB directional coupler. The signal from the arm of the coupler shall pass through two filters connected in s
32、eries (a high pass with a cutoff at 2.7 GHz and a low pass with a cutoff at 3.3 GHz), into a crystal detector. The output of the coupler shall be connected through a 3-dB attenuator to a variable-phase short circuit. The spurious power output shall be the maximum signal detected at the crystal as th
33、e phase of the short is varied through the one-wave length at 3 GHz. 20/ The tube shall be stable when operating at the optimum voltage given on the test data sheet for the specific tube, and for all cathode currents within 5 percent of that cathode current shown on the data sheet. In addition, with
34、 an input VSWR of 1.5 or less, the tube shall be capable of driving a mismatched load of 1.5:1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1712D 5 TABLE I. Testing and inspection - Continued. 21/ The VSWR and frequency at both input an
35、d output shall be measured and recorded at the point of maximum VSWR in the frequency band. The tube shall operate with an input/output impedance of 50 ohms. 22/ The cathode voltage shall be varied within the values specified. The /ek measurement is the difference between the phase shifts through th
36、e tube at the two cathode voltage extremes divided by the change in voltage. 23/ The end of life point shall be defined as that point in time when the power output is reduced to less than 3.6 kw peak anywhere between 2.9 and 3.1 GHz with the tube operated at the recommended cathode voltage, working
37、into a matched load (50 ohms) having a VSWR of 1.1:1 or less, and driven with a fixed input power of 0.7 watt maximum. 24/ This specification sheet uses accept on zero defect sampling plan in accordance with MIL-PRF-1, table III. Provided by IHSNot for ResaleNo reproduction or networking permitted w
38、ithout license from IHS-,-,-MIL-PRF-1/1712D 6 FIGURE 1. Outline drawing of electron tube type DOD-039. Dimensions Ltr Inches mm Min Max Min Max A 3.365 3.385 85.47 85.98 B 1.630 1.750 41.40 44.45 C .440 .560 11.18 14.22 D .940 1.060 23.88 26.92 E 7.802 7.822 198.17 198.68 F 17.500 18.000 444.50 457.
39、20 G .271 .291 6.88 7.39 H .350 .410 8.89 10.41 J 3.850 3.910 97.79 99.31 K - .250 - 6.35 L - 4.250 - 107.95 M 4.438 5.500 112.73 139.70 N .812 1.500 20.62 38.10 P 2.312 3.750 58.72 95.25 R 10.438 11.000 265.13 279.40 S 1.250 1.875 31.75 47.63 T .26 .500 6.60 12.70 U 19.70 20.30 500.38 515.62 NOTES:
40、 1. Heater leads shall be Surpremant type SE-HV(30) 1927A(90) brown and yellow or ITT ETD P/Ns 282359 (brown) and 282360 (yellow), or equivalent for use with terminal AMP 35538, or equal. 2. Heater leads omitted for clarity. Provided by IHSNot for ResaleNo reproduction or networking permitted withou
41、t license from IHS-,-,-MIL-PRF-1/1712D 7 FIGURE 2. Test circuit for electron tube type DOD-039. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1712D 8 Custodians: Preparing activity: Army - CR DLA - CC Navy - EC DLA - CC (Project 5960-3667) Review activities: Navy - AS, CG, MC, OS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
