1、PERFORMANCE SPECIFICATION SHEET Parameter: P(g2) I INCH-POUND I Pi PP Seal tk Barometric temp pressure, MlL-PRF-l/1587D(USAF) - SUPERSEDING MIL-E-1 /1587C(USAF) 10 July 1981 Unit: AB Audio: ELECTRON TUBE, POWER TYPE 8596 reduced W w W “C SeC mmHg 4.5 180 115 250 60 140.7 This specification is approv
2、ed for use by all Depati- 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. AB SSBC: C Telep: C Teleg: Test conditions: 21 DESCRIPTION: Tetrode, ceramic-metal, F1 = 400
3、MHz. Outline: See figure 1. Mounting position: Any. 4.5 180 115 250 60 140.7 3.0 120 75 250 60 140.7 4.5 180 115 250 60 140.7 _ 250 max - - _ -_ ABSOLUTE RATINGS: Parameter: I Ef I Eb I Ecl I Ec2 I Ib I IC1 Unit: v 1/ I Vdc I Vdc I Vdc 1 mAdc I mAdc AB Audio 6.3 2 10% 1,000 - 300 180 30 AB SSBC: C T
4、eleD: 6.3I 10% 1,OOO I 6.3+10% 1 800 I I I I :i I C Teleg: I 6.3+10% I 1,OOO I -100 I 300 I 180 I 30 Test conditions: I 6.3 I 1,OOO I Adj I 300 I _ -_ GENERAL: Qualification: Required. AMSC N/A lof9 DISTRIBUTION STATEMENT A . Approved for public release: distribution is unlimited. FSC 5960 Provided
5、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Inspection -_ _ - - 51 - Conformance inspection. eater current tal grid current lectrode current (screen) lectrode voltage (1) (grid) lectrode voltage (2) (grid) ulsing emission urrent division (anode) Eclllb =
6、115 mA dc Eclllb = 115 mA dc Eclllb = 1 mA dc etd/ik=lOa Eb = 350 V dc; Ecl = -100 V dc procedure (b) Conformance inspection, nmary grid emission :control) nmary grid emission :screen) lterelement leakage asistance, cold F useful power output ower oscillation ired-interelectrode 2apadtance wiethod 1
7、301 1266 1256 1261 1261 1231 1372 1266 1266 1366 2214 1236 1331 MIL-PRF-l11587D(USAF) TABLE I. Testina and inspection. Jotes Conditions = 30; a and 92 grounded and gl grounded; = 30 z1 I all unused electrodes Symbol If IC1 IC2 Ec 1 Ec 1 etd ib Li1 Min 2.90 .- -8.0 -6.0 _ _ 390 ts Max 3.55 -20 +2.0 -
8、13.5 -47 400 - -12 -25 -_ - _- 15.2 21.9 5.1 .O65 .o1 9 1.30 - Unit A pA dc mA dc V dc V dc V ma PA dc pA dc Meg w useful) w useful) PF PF PF PF PF pF e footnotes at end of table. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Inspection 9/ _ - -
9、_- Conformance insDection, Group C; Ef = 5.7 V; F = 4+ 20 MHz; Class C amplifier; Ib = 180 mA dc; Icl = 30 mA dc ma; Ecl = value obtained in Ecl test in accordance with part 1 herein. etdlik = 7.5 a Ecl/gl input = 2 W; t = 30; a and 92 grounded EcVg2 input = 4.5 W; t = 30; a and gl grounded Group C;
10、 Ef = 8.5 V; t = 150 “on“, 300 “off -fe test ,fe-test end points: Pulsing emission Primary grid emission Primary grid emission (control) (screen) Heater-cycling life Heater-cycling life test end point: Heater current Shock, specified pulse (1) Shock (2) Vibration (1) Vibration (2) Chock (l), shock (
11、2) and vibration (2) end points: Total grid current Electrode voltage (1) (grid) Barometric pressure, reduced 1 MIL-PRF-l/l 5WD(USAF) TABLE I. Testina and insDection - Continued. Aethod - _ _- 1231 1266 1266 1506 _ 1301 1042 1041 _ _ _ 1266 1261 1002 lotes Conditions est condition A; Ef only 101 O G
12、, 0.75 ms O/ u/ Eb = 300 V dc; Ec2 = 250 V dc; EclIlb = 10 mA dc; Rp = 2,000 ohms Eclllb = 10 mA dc; Rp = 2,000 ohms; -. Rg2 = 1 ,o00 ohms Q/m Eb = 300 V dc; Ec2 = 250 V dc; - I cl/lb = 115 mA dc cl/lb = 115 mA dc Symbol t etd Isgl lsg2 _ If _ _ EP _- IC1 Ecl - - Unit See footnotes at top of next pa
13、ge. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 91 191 Freauency (Hz) 5-10 10-15 15-75 75-2,ooO - 111 Double amolitude Acceleration (inches) (G) ,080 k 10 percent _ .O36 k 10 percent _- _ 0.41 k 10 percent _- 1 O I 1 O percent MIL-PRF-l11587D(
14、USAF) TABLE I. Testina and inspection - Continued. The tube under test (TUT) cathode will be subjected to considerable back bombardment as the frequency in increased, due to transit-time effects which raise the temperature of the cathode. Depending upon operating conditions and frequency, the heater
15、 voltage should be reduced to prevent overheating of the cathode and resultant short life. Pertinent to the specified test conditions and performance of all electrical tests, a dummy 7457 radiator may be attached to the anode of type 8596 when under test. The acceptance level for all tests listed un
16、der conformance inspection, pari 1, shall be 0.65, inspection level II. Airflow shall be supplied to limit the TUT anode seal temperature to 225C minimum. The applied voltage source shall meet the following requirements: Pulse duration = 2 ps minimum and not greater than 10 ps at the base line of th
17、e pulse, prr = 60 Hz minimum. Adjust the pulse amplitude until the specified peak cathode current is obtained. Measurement shall be made at end of one minute or when stability is reached, whichever occurs first. Conformance inspection, pari 2 and part 3 tests may be performed on any of the types of
18、the same basic 8596 construction manufactured during any one months production period. Prior to performing this test, the TUT shall be cooled at room ambient temperature for 30 minutes. Using the test circuit shown on figure 1366-1 of test method 1366, measure the resistance in both directions, betw
19、een any two adjacent electrodes, except across the heater terminals. If the resistance value measured is below that required, repeat this test after a 10-minute interval. The TUT shall be rejected if it fails again. This test shall be performed using a grid-driven tuned amplifier. Adjust Ecl bias su
20、pply, and tune circuit for maximum useful power output. The specified driver power output shall be measured using a Bird Thru-line Wattmeter, or equivalent. Driving power output = forward power minus reflected power. Ecl supply shall have an effective impedance of 500 ohms maximum. The TUT shall ope
21、rate in a gnd-driven tuned amplifier; drive shall be vaned and output circuit tuned for maximum power output with specified Ib; Ecl supply shall have an effective impedance of 500 ohms maximum. This test shall be performed (or dimensions shall be checked) during the initial production and once each
22、succeeding 124endar months in which there is production. A regular double sampling plan shall be used, with the first sample of three tubes with an acceptance number of zero, and a second sample of three tubes with a combined acceptance number of one. In the event of failure, the test will be made a
23、s a pari of conformance inspection, part 2, code level D, with an acceptance level of 6.5. The regular “12-calendar month“ double sampling plan shall be reinstated after three consecutive samples have been accepted. The TUT shall be vibrated in axes X, Y, and Z under the following conditions: ximate
24、 sweep duration Cvclina test: The frequency shall be swept from 5 to 2,000 to 5 Hz with approximately logarithmic progression, and shall require approximately 8 minutes to traverse the range. This constitutes one cycle. The TUT shall be vibrated for one such cyde in each of the three axes. Record ma
25、ximum vibrational noise output from 575 Hz using the Bruel and Kjaer type 2409 true rms meter, or equivalent. Record vibrational noise output response curve from 752,000 Hz using the Bruel and Kjaer automatic recorder, or equivalent. 4 Provided by IHSNot for ResaleNo reproduction or networking permi
26、tted without license from IHS-,-,-flIL-PRF-L/L587D aai 7999906 2330039 T5b Freauency (Hz) 5-15 15-75 75-1.500 MIL-PRF-l11587D(USAF) TABLE I. Testina and insDection - Continued. - 121 The TUT shall be vibrated in axes X, Y, and Z under the following conditions: pouble amditude Acceleration (inches) (
27、G) .170 I 10 percent -_ .O30 I 10 percent .- _ 3 I 10 percent Dclina t&: The frequency shall vary from 5 to 1,500 to 5 Hz with approximately logarithmic progression, and shall require approximately 6 minutes to traverse the range. This constitutes one cyde. The TUT shall be vibrated for one such cyd
28、e in each of the three axes. An oscilloscope having a vertical amplifier with a minimum bandpass of DC to 10 MHz shall be used to monitor the signal across the 2K series plate resistor. The horizontal sape sweep frequency shall be approximately 1 centimeter per second. The signal shall be DC coupled
29、 to the oscilloscope. If a signal greater than 150 volts occurs during the vibration sweep, the sweep shall be reversed (first rescan) as soon as possible to pass through and below the frequency where this signal was noted. At this point the sweep shall be reversed to the normal direction (second re
30、scan). If a signal greater than 150 volts recurs (within approximately I 20 percent of the noted frequency) during the first or second rescans the tube shall be considered a failure. If no signal greater than 150 volts occurs during either of the two rescans, the tube is not a failure and the normal
31、 vibration sweep chan be continued. If additional signals occur greater than 150 volts, the above procedure shall be repeated. A signal greater than 25 volts for a duration greater than 2 seconds is cause for rejection. The 150 volts and the 25 volts referred to above are deflection only and does no
32、t include the oscilloscope signal resulting from the 10 ma plate current flowing through Rp. (NOTE: An equivalent method for measuring the signal across the plate resistor may be used.) Revision letters are not used in this revision to identify changes with respect to the previous issue, due to the
33、extensiveness of the changes. - 13/ 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GRID NO.2 2 J W I ciSI+ LGRID NO.l TERMINAL - HEATER CATHODE TERMINAL WIDE, H DEEP HEATER TERMINAL ACTUAL TUBE OUTLINE WITHIN THESE AREAS IS NOT CONTROLLED BY DIMEN
34、SIONS AND MUST NOT BE USED FOR ANY PURPOSE FIGURE 1. Outline drawina of electron tub e ivw 8596. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-PRF- 1 /1587D( USAF) _-_ (see N/ in table I) -_ _- NOTES: 1. Dimension are in inches. 2. Metric eq
35、uivalents are given for general information only and are based upon 1.00 inch = 25.4 mm. 3. Unless otherwise specified, tolerances are f .O01 inch (0.03 mm). FIGURE 1. Qutline drawina of electron tube tvDe 85% - Continued. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
36、t license from IHS-,-,-Ltr AF AG AH AJ AK AL AM AN AP AQ AR - - - - - Inches 12 w q GAUGE N0.4 Millimeters Min 1 Max I Min 1 Max 1.374 I 1.376 I 34.90 1 34.96 NOTES: 1. Dimension are in inches. 2. Metric equivalents are given for general infomation only and are based upon 1 .o0 inch = 25.4 mm. 3. Un
37、less otherwise specified, tolerances are f ,001 inch (0.03 mm). FIGURE 1. Outline drawina of electron tube Iwe 85 96 - Continued. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* Custodian: Air Force - 11 DLA - CC Review activities: (Project 5960-3550) Air Force - 99 Preparing activiy: DLA - CC 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
