1、AMSC N/A FSC 5960 MIL-PRF-1/1509G 18 December 2008 SUPERSEDING MIL-PRF-1/1509F 16 July 2004 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, POWER TYPES 6696A, 6697A, and 6697AW This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for
2、acquiring the electron tube described herein shall consist of this document and the latest issue of MIL-PRF-1. DESCRIPTION: Triode, metal-ceramic. See figures 1 and 2. Mounting positions: 6696A - vertically, anode down, in water jacket. 6697A and 6697AW - vertically, anode down, in air distributor.
3、Weight: 6696A - 17 pounds (7.7 kilograms) nominal. 6697A and 6697AW - 43 pounds (19.5 kilograms) nominal. ABSOLUTE RATINGS: (Maximum): Parameter: F1 Ef Eb Ec Ib Ic Pg Pi Pp Seal and env temp Cooling Unit: MHz V kV dc kV dc A dc A dc W kW kW C - TYPE C Teleg: 6696A 6697A 6697AW 30 30 13.0 5 % 13.0 5
4、% 16.0 16.0 -3.2 -3.2 11.0 11.0 2.0 2.0 1,000 1,000176 120 60 35 200 200 1/ 2/ C Telep: 6696A 6697A 6697AW 30 30 13.0 5 % 13.0 5 % 10.0 10.0 -3.2 -3.2 8.5 8.5 2.0 2.0 1,000 1,00085 81 40 23 200 200 1/ 2/ B/AB Audio: 6696A 6697A 6697AW - - 13.0 5 % 13.0 5 % 16.0 16.0 - - 11.0 11.0 - - 1,000 1,00095 5
5、5 60 35 200 200 1/ 2/ B Telep: 6696A 6697A 6697AW 30 30 13.0 5 % 13.0 5 % 16.0 16.0 - - 9.0 9.0 - - 1,000 1,000144 85 60 35 200 200 1/ 2/ AB rf Amp: 6696A 6697A 6697AW 30 30 13.0 5 % 13.0 5 % 16.0 16.0 - - 11.0 11.0 - - 1,000 1,000150 90 60 35 200 200 1/ 2/ Test conditions: 6696A 6697A 6697AW - - 13
6、.0 13.0 - - - - - - - - - - - - - - - - 3/ 4/ 5/ See footnotes at end of table I. _ GENERAL: Qualification: Not Required. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1509G 2 TABLE I. Testing and inspection. Inspection Method
7、NotesConditions AcceptanceSymbolLimits Unit MIL-STD-1311 Level 12/ Min Max Conformance inspection, part 1 Total grid current 1266 5/ 8/ Eb = 10.0 kV dc; Ec/Ib = 3.0 A dc; Pin = 30 kW; t = 300 seconds 0.65 Ic - -300 A dcElectrode voltage (1) (anode) 1261 - Ec = -200 V dc; Eb/Ib = 3.0 A dc 0.65 Eb(1)
8、5.6 7.2 kV dc Electrode voltage (2) (anode) 1261 - Ec = 0; Eb/Ib = 3.0 A dc 0.65 Eb(2) 1.9 2.9 kV dc Power oscillation 1236 - Eb = 20.0 kV dc; Ib = 6.0 A dc; Ic = 1.0 A dc (max); Rg = 3,000 ohms (max); Ec = -3,000 V dc (max); F = 13.6 MHz (min); t = 600 seconds (min)0.65 Po 75 - kW (useful)Peak emis
9、sion 1231 - eb = ec = 2,000 V 0.65 is 120 - a Electrode voltage (grid) 1261 - Eb = 15.0 kV dc; Ec/Ib = 0.020 A dc 0.65 Eco -800 -1,000 V dc Primary grid emission 1266 - Anode grounded; Eg/Pg = 1,000 W; t = 20 seconds 0.65 Isg - -5.0 mA dcCold grid emission - 9/ Ef = 0; Anode floating; Ec = -15.0 kV
10、dc 0.65 Ic - 15 A dcConformance inspection, part 2 Filament current 1301 - - If 190 210 A Direct-interelectrode capacitance 1331 - No shield No shield No shield - Cgp Cgk Cpk 47.0 65.0 2.0 57.0 85.0 3.2 pF pF pF See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networkin
11、g permitted without license from IHS-,-,-MIL-PRF-1/1509G 3 TABLE I. Testing and inspection - Continued. Inspection Method Notes Conditions AcceptanceSymbolLimits Unit MIL-STD-1311 Level 12/ Min Max Conformance inspection, part 3 Life test - 6/ Group D; filament cycling; Ef = 13.0 V; “on“ time = 3.5
12、20%hours; “off“ time = 15 20% minutes; t = 500 hours - - - - - Life-test end points: Total grid current Electrode voltage (grid) Peak emission - 1266 1261 1231 - - - - - - Ic Ec is - -800 120 -330 -1,000 - A dcV dc a Mechanical resonance (type 6697AW only) - 7/ 11/ No voltages applied - - - - - 1/ F
13、orced-air cooling of the base and seals may be required, depending on ambient conditions and operating frequency. Airflow rate and direction should be determined to limit seal and envelope temperatures to 200C maximum and to maintain uniform temperature distribution around the seals. Minimum cooling
14、 requirements for the anode are shown, based on use of the Machlett Laboratories Inc. F-17393 water jacket, the EIMAC SK-1620 water jacket, or equivalent. Anode diss. (kW) Water flow rate (gpm) Approx. press. drop (psi) 20 5.7 1.3 30 8.0 2.1 40 11.2 3.3 50 14.5 5.0 60 18.0 7.2 2/ Forced-air cooling
15、of the base and seals may be required, depending on the ambient conditions and the operating frequency. Airflow rate and direction should be determined to limit seal and envelope temperatures to 200C maximum and to maintain uniform temperature distribution around the seals. Minimum cooling requireme
16、nts for the anode are shown, based on a maximum incoming air temperature of 50C at sea level, and the use of the air distributor shown on figure 3, Machlett Laboratories Inc. F-17759 air distributor, EIMAC SK-1606A air distributor, or equivalent. Anode diss. Airflow Approx. press. drop (kW) (cfm) (i
17、nches of water) 10 240 0.2 20 700 1.5 30 1,350 5.0 35 1,700 8.0 In cases where long life and consistent performance are factors, cooling in excess of minimum requirements is normally beneficial. 3/ During test, it shall be permissible to use forced-air cooling of the envelope and base and water cool
18、ing of the anode, in accordance with the provisions of 1/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1509G 4 TABLE I. Testing and inspection - Continued. 4/ During test, it shall be permissible to use forced-air cooling of the envelop
19、e, base, and anode, in accordance with the provisions of 2/. 5/ At the option of the manufacturer, type 6697A and 6697AW tubes may be tested according to this document as water-cooled tubes before assembly with the anode cooler (radiator) in which case only the total grid-current test (method 1266)
20、need be made on the assembled tube. A holding period of 72 hours minimum (after attaching cooler) should elapse before making the total grid-current test. 6/ The operating time, t, is the total “on“ time. Demonstration of satisfactory compliance to the life-test requirements listed by any of the thr
21、ee types shall satisfy the requirements for all three types. 7/ This test shall be performed on the grid-cathode structure, with the anode and envelope removed. The structure shall be supported by the grid terminal and mounted with its axis perpendicular to the direction of vibration. With a constan
22、t total displacement of approximately .002 inch (0.05 mm), the frequency shall be varied from 10 to 50 to 10 Hz. When viewed under light from a stroboscope, no resonance below 30 Hz shall be indicated. 8/ This test is to be the first test performed at the conclusion of the holding period. 9/ The col
23、d grid-current test shall be performed using the circuit shown on figure 4, or equivalent. The Ec voltage shall be raised to the specified value but at no time shall the resultant Ic exceed 100 A dc. When the specified value of Ec is reached, the tube shall be held under this condition until the Ic
24、requirement is met. Residual equipment leakage current may be subtracted from the indicated Ic reading. 10/ Compatibility testing will be required in addition to the requirements stated herein. A sample of eight each tube types 6696A and 6697A shall be subjected to compatibility testing. The 6696A s
25、hall be subjected to compatibility testing in the AN/FRT-67. The 6697A shall be subjected to compatibility testing in the AN/FRT-31. Compatibility testing shall be considered satisfactorily completed when the samples have accumulated a total of 3,200 operating hours without a failure. Each tube must
26、 operate at least 400 hours. In the event of a failure, the remaining tubes must accumulate a total of 3,600 operating hours. If more than one failure occurs, the sample shall be rejected. Compatibility testing will be conducted at each installation on a noninterference basis. Only manufacturers whi
27、ch have passed compatibility testing will be considered qualified. 11/ This test shall be performed yearly. An accept on zero defect sampling plan shall be used with sample of three tubes with an acceptance number of zero. In the event of failure, the test will be made as a part of conformance inspe
28、ction, part 2, acceptance level 6.5 (see 12/). The yearly sampling plan may be reinstated after three consecutive samples have been accepted. 12/ This specification sheet uses accept on zero sampling in accordance with MIL-PRF-1, table III. Provided by IHSNot for ResaleNo reproduction or networking
29、permitted without license from IHS-,-,-MIL-PRF-1/1509G 5 NOTES: 1. Three bayonet pins, dimension P diameter; length: Min .292 (7.42 mm), max .354 (8.99 mm), nominally 120 apart. 2. Dimensions shall be checked during the initial production and annually thereafter. An accept on zero defect sampling pl
30、an shall be used, with sample of three tubes with an acceptance number of zero. In the event of failure, the test will be made as a part of conformance inspection, part 2, acceptance level 6.5 (see 12/). Annual sampling plan may be reinstated after three consecutive samples have been accepted. FIGUR
31、E 1. Outline drawing of electron tube type 6696A.Dimensions Ltr Inches Millimeters Min Max Min Max Conformance inspection, part 2 G 7.750 8.000 196.85 203.20 K .406 .469 10.31 11.91 L - 19.375 - 492.13 M 3.485 3.515 88.52 89.28 N 3.990 4.000 101.35 101.60 P .300 .320 7.62 8.13 R 9.750 10.000 247.65
32、254.00 Conformance inspection, part 3 (see note 2) A 2.469 2.531 62.71 64.29 B 3.469 3.531 88.11 89.69 C 4.619 4.681 117.32 118.90 D - 1.187 - 30.15 E - 1.000 - 25.40 F .125 - 3.18 - H 6.500 6.750 165.10 171.45 J 4.812 4.937 122.22 125.40 S - 4.720 - 119.89 T - 5.280 - 134.11 Provided by IHSNot for
33、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1509G 6 FIGURE 2. Outline drawing of electron tube types 6697A and 6697AW. Dimensions Ltr Inches Millimeters Min Max Min Max Conformance inspection, part 2 L - 19.875 - 504.83 M 5.219 5.281 132.56 134.14 N 10.000 10
34、.250 254.00 260.35 Conformance inspection, part 3 (See note 2, figure 1) A 2.469 2.531 62.71 64.29 B 3.469 3.531 88.11 89.69 C 4.619 4.681 117.32 118.90 D - 1.187 - 30.15 E - 1.000 - 25.40 F .125 - 3.18 - G 7.750 8.000 196.85 203.20 H 6.500 6.750 165.10 171.45 J 4.812 4.937 122.22 125.40 K .312 - 7.
35、92 - P - 4.720 - 119.89 R - 5.280 - 134.11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1509G 7 NOTE: Metric equivalents (to the nearest 0.01 mm) are given for general information only. FIGURE 3. Air distributor for tube type 6697A. Dime
36、nsions Ltr Inches Millimeters Min Max Min Max A 5.28 5.31 134.11 134.87 B 10.38 10.62 263.65 269.75 C - .063 - 1.60 D 10.88 11.12 276.35 282.45 E - 1.000 - 25.40 F - 11.375 - 288.93 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1509G 8 FI
37、GURE 4. Test circuit for cold grid-current test. Referenced documents. In addition to MIL-PRF-1, this specification sheet references 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 convenie
38、nce only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the previous issue. Custodia
39、n: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 85 (Project 5960-2008-074) DLA - CC Review activities: Army - AV, CR4 Navy - AS, CG, OS Air Force - 99 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 http:/assist.daps.dla.mil/ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
