1、 MIL-PRF-1/1313G 7 June 2012 SUPERSEDING MIL-PRF-1/1313 F 9 July 2004 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, POWER TYPE 8167 This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the electron tube described herein
2、shall consist of this document and the latest issue of MIL-PRF-1. DESCRIPTION: Tetrode, metal-ceramic. See figure 1. Mounting position: Any. Weight: 4 ounces (105.4 grams) nominal. ABSOLUTE RATINGS: F = 500 MHz. Parameter: Ef Eb Ec1 Ec2 Ib Ehk Pg1 Pg2 Unit: V ac 1/ V dc V dc V dc mA dc V dc W W Maxi
3、mum: Class C Telep: 6.0 5% 1,500 -250 300 200 150 2 12 Class C Teleg: 6.0 5% 2,000 -250 300 250 150 2 12 Class AB1: 6.0 5% 2,500 - 400 250 150 2 12 Test conditions: 6.0 1,000 Adj 300 150 - - - ABSOLUTE RATINGS: F = 500 MHz. Parameter: Pp T(seal and anode core) tk Cooling Barometric pressure, reduced
4、 Unit: W C sec (min) 2/ mmHg (min) Maximum: Class C Telep: 200 250 30 - 141 5 Class C Teleg: 300 250 30 - 141 5 Class AB1: 300 250 30 - 141 5 Test conditions: - - 120 3/ - _ GENERAL: Qualification: Required. This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, t
5、able III. AMSC N/A FSC 5960 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1313G 2 TABLE I. Testing and inspection. Inspection Method Notes Conditions Symbol Limits Unit MIL-STD-1311 Min Max Conformance inspection, part 1 Electr
6、ode current (screen) 1256 - Ic2 - -5.0 +3.0 mA dc Total grid current 1266 4/ Eb = 2,000 V dc Ic1 - -15 A dc Electrode voltage (grid) 1261 - Ec1 -32.0 -45.0 V dc Primary-grid emission (control) 1266 - Ic1 = 70 mA dc; t = 15 seconds; anode and g2 floating Isg1 - -25 A dc Primary-grid emission (screen)
7、 1266 - Ec1 = 0; t = 15 seconds; Ic2 = 100 mA dc; anode floating Isg2 - -250 A dc Pulse emission (1) 2212 5/ Eb = Ec2 = 250 V dc; Ec1 = -100 V dc; egk/ik = 1.5 a; Ef = 5.4 V ac; tp = 4,500 s (min); prr = 11 1; tr = tf = 25 s; slope = 0.5 percent; ripple = 0.1 percent ik - 200 ma Current division (me
8、thod A) 1372 - Eb = Ec2 = 250 V dc; Ec1 = -100 V dc; egk/Ib = 1.0 a; tp = 4,500 s (min); prr = 11 1 egk ic1 ic2 8.0 - - 18.0 250 250 v ma ma Conformance inspection, part 2 Heater current 1301 - If 2.6 3.1 A ac Stability - - Eb = 2,000 V dc; Ec1/Ib = 150 mA dc at t = 0; read Ib at t = 120 seconds Ib
9、- 10 mA dc Interelement leakage resistance, cold 1366 13/ Rs = 2.5 Meg; E = 100 V dc, g1 negative E = 500 V dc, g2 positive; E = 500 V dc, p positive Rg1k Rg1g2 Rg2p 50 50 50 - - - Meg Meg Meg See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted without
10、 license from IHS-,-,-MIL-PRF-1/1313G 3 TABLE I. Testing and inspection - Continued. Inspection Method Notes Conditions Symbol Limits Unit MIL-STD-1311 Min Max Conformance inspection, part 2 Continued Direct-interelectrode capacitance (ground cathode connection) 1331 - Test in fixture in accordance
11、with DESC Drawing 67001, or equivalent Cgp Cin Cout - 25.0 3.5 0.06 33.0 4.5 pF pF pF Heater-cathode leakage 1336 - Ehk = +250 V dc; Ehk = -250 V dc Ihk Ihk - - 150 150 A dc A dc Pulse emission (2) 2212 5/ Pulse emission (1), except Ef = 6.0 V ac ik - 100 ma RF useful output power 2214 - Class C amp
12、lifier; F = 450 to 500 MHz; Eb = 2,000 V dc; Ec1 = -90 V dc; Ec2 = 250 to 300 V dc; Ic1 = 25 mA dc (max); Eg1/Ib = 250 mA dc; Ef = 5.0V ac; circuit and cavity in accordance with Drawing 285-JAN, or equivalent Po 225 - W Conformance inspection, part 3 Vibration (noise) - 6/ 7/ Ef = 6.0 V (ac or dc);
13、Ebb = 2,500 V dc; Ec2 = 350 V dc; Rp = 4,900 ohms; Ec1/Ib = 100 mA dc; accel = 20 G peak (min); F = 100 to 750 Hz, ascending sweep only Ep - 20 V ac Vibration (noise) end points: Total grid current Electrode voltage (grid) - 1266 1261 - - Ic1 Ec1 - -32.0 -20 -45.0 A dc V dc Long duration shock - 6/
14、8/ Eb = 2,000 V dc; Ec2 = 350 V dc; Ec1 = -150 V dc; shock = 11 2 ms; accel = 90 G peak (min); total impacts = 18 - - - - See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1313G 4 TABLE I. Testing and inspection
15、 - Continued. Inspection Method Notes Conditions Symbol Limits Unit MIL-STD-1311 Min Max Conformance inspection, part 3 - Continued Long duration shock end points: Total grid current Electrode voltage (grid) - 1266 1261 - - Ic1 Ec1 - -32.0 -20 -45.0 A dc V dc Linear amplifier power output and distor
16、tion 2204 6/ Eb = 2,000 V dc; Ec2 = 350 V dc; Ec1/Ibo = 125 mA dc; Eg1/Ib = 250 mA dc 1 tone; R = 4,150 150 ohms; Rg = 1,000 ohms (max); F = 2 to 10 MHz; anode tank Q = 10 to 15 Po 3rd IM 5th IM 225 -25 -30 - - - W (useful) dB dB Life test (5) - 10/ Group C; linear amplifier power output and distort
17、ion; t = 500 hours Po (initial) 225 - W (useful) Life test (5) end points: Interelement leakage resistance, cold Linear amplifier power output and distortion Life test (5) - 1366 2204 - 13/ - 10/ t = 500 hours Rg1k Rg1g2 Rg2p Po 3rd IM 5th IM Po Ib 10 10 15 210 -24 -29 210 - - - - - - - - 35 Meg Meg
18、 Meg W (useful) dB dB W (useful) mA dc Life test (2) - - Group C; Ef = 6.6 V ac; Ec1 = Ec2 = Eb = 0; t = 500 hours - - - - Life-test (2) end points: Interelement leakage resistance, cold - 1366 13/ Rg1k Rg1g2 Rg2p 10 10 15 - - - Meg Meg Meg Life test (4) - 11/ Group C; Ec1 = -100 V dc; g2 and p floa
19、ting; t = 200 hours - - - - See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1313G 5 TABLE I. Testing and inspection - Continued. Inspection Method Notes Conditions Symbol Limits Unit MIL-STD-1311 Min Max Confo
20、rmance inspection, part 3 - Continued Life-test (4) end points: Heater current Heater-cathode leakage - 1301 1336 - - Ehk = +250 V dc Ehk = -250 V dc If Ihk Ihk 2.6 - - 3.1 150 150 A ac A dc A dc Pressure drop 1155 9/ Airflow = 5.0 cfm (min) - - 0.4 Inch H2O Cooling - 9/ 12/ Eb = 2,000 V dc; Ec1= 0;
21、 Ec2/Ib = 150 mA dc; airflow = 5.0 cfm (max) T(anode core) T(anode seal) T(base seal) - - - 250 225 225 C C C Humidity 1011 9/ - - - - Humidity test end point: Total grid current - 1266 - Ic1 - -20 A dc Life-test (1) - 9/ RF useful power output; t = 500 hours - - - - Life-test (1) end points: Pulse
22、emission (2) Primary grid emission (control) Primary grid emission (screen) Heater-cathode leakage RF useful power output - 2212 1266 1266 1336 2214 - - - - - Ehk = +250 V dc Ehk = -250 V dc ik Isg1 Isg2 Ihk Ihk Po - - - - - 180 100 -25 -250 150 150 - ma A dc A dc A dc A dc W Life test (3) - 9/ Ebb
23、= 1,000 V dc; Ec2 = 250 V dc; Ec1/Ib = 50 mA dc; Eg1/Ib = 100 mA dc; Rp = 1,000 ohms; TA = 200C (min); F = 1 kHz (min); t = 100 hours - - - - Life-test (3) end points: Pulse emission (2) Total grid current - 2212 1266 - - ik Ic1 - - 100 -20 ma A dc See footnotes at top of next page. Provided by IHSN
24、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1313G 6 TABLE I. Testing and inspection - Continued. 1/ At frequencies above approximately 200 MHz, it may be necessary to reduce heater voltage to compensate for rf transit-time heating of the cathode after
25、dynamic operation of the tube has started. This back heating is a function of frequency, grid current, grid bias, anode current, duty cycle, and circuit design and adjustment. Particular care should be used in the selection of stable circuit components and in final tuning of high-frequency circuits
26、as off-resonance operation, even to a small degree, may result in marked and undesirable increase in cathode temperature. There is an optimum heater voltage which will maintain the cathode at the correct operating temperature for any particular set of operating conditions. A maximum variation of 5 p
27、ercent from optimum is permitted. For straight-through, Class C CW amplifier operation, the following heater operation voltages are indicated: Frequency (MHz) Ef (V ac) 201 to 300 5.75 301 to 400 5.50 401 to 500 5.00 2/ When the tube is operated at 100 percent of maximum rated anode dissipation at a
28、n incoming air temperature of 25C maximum, a minimum airflow of 5.0 cfm at sea level shall pass through the anode cooler. If the socket EIMAC SK-710 and chimney SK-606, or equivalents, are used, an incoming airflow of 5.0 cfm to the lower end of the socket is required. At this flow of 5.0 cfm, the s
29、tatic pressure drop directly across the tube and socket (with chimney installed) is approximately 0.4 inch of water. This pressure drop varies with the amount of escaping air and with the shape and construction of the air director (chimney). The airflow rating applies at bias voltages of less than 1
30、00 volts and frequencies less than 500 MHz. Air cooling of the tube should be increased with increased negative grid bias, increased incoming air temperature, increased frequency of operation, or a combination. In all cases of operation, a socket which provides forced-air cooling of the base shall b
31、e used, and maximum seal and anode core temperature ratings shall not be exceeded. Airflow must be applied before or simultaneously with electrode voltages, and may be removed simultaneously with them. In cases where long life and consistent performance are factors, cooling in excess of minimum requ
32、irements is normally beneficial. 3/ Unless otherwise specified herein, in all electrical tests involving application of heater voltage, forced-air cooling of the tube is allowed at the rate of 5.0 cfm for the base and anode. The tube should be operated in an air-system socket (EIMAC SK-710 socket, w
33、ith EIMAC SK-606 chimney, or equivalents). Standard temperature and pressure conditions shall apply. 4/ This test is to be the first test performed at the conclusion of the holding period. 5/ Pulse emission (1) and (2) are taken at the voltage conditions specified. For the basic test circuit, see te
34、st method 1372, figure 1372-1. 6/ Testing shall be performed every three months, with sampling as follows: n1 = 4 c1 = 0 The listed tests shall be considered as nondestructive except in case of failure. In case of a sample failure, that test shall become conformance inspection, part 2, acceptance le
35、vel 6.5 of MIL-PRF-1 Table III, for three consecutive successful submissions, at which time the test may revert to the quarterly basis. 7/ The fixture described in Drawing 284-JAN shall be used to hold the tube in the manner indicated. The test circuit shown on figure 3 shall be used, but tubes foun
36、d to electrically oscillate for causes other than vibration shall not be tested nor rejected on this test. Each tube under test shall be subjected to one sweep cycle in each of the three axes X, Y, and Z. One sweep cycle (100 to 750 Hz, ascending only) shall be covered in 6 to 12 minutes. Each tube
37、shall be vibrated for 60 seconds at the frequency which gives the maximum vibration output voltage in each of the three positions. If at the end of 60 seconds the vibration output is increasing, the vibration shall be continued until there is no further increase for 60 seconds. The tubes shall not s
38、how noise voltage output in excess of the maximum limit specified, except one intermittent short per tube shall be allowable during this test. The tube shall show no intermittent or tap shorts after the test. In addition to reading noise voltage output with a VTVM, such as an HP400D or equivalent, a
39、 permanent recording shall be made using a good quality recorder to produce a plot of noise voltage versus frequency. Noise voltage amplifiers used with the recorder shall have a 1 dB frequency response over the range to be measured (100 to 750 Hz) and the overall recording equipment shall be capabl
40、e of fast response in order to show sharp noise voltage spikes resulting from internal tube resonances or other phenomenon. Prominent noise peaks indicated on the recording shall be individually investigated by fixed-frequency operation, and the 60-second operation shall be made at the frequency of
41、highest noise as so selected. The frequency at the extremes of the sweep shall be read with an accuracy of 1 percent. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/1313G 7 TABLE I. Testing and inspection - Continued. 8/ The fixture descri
42、bed in Drawing 284-JAN shall be used to hold the tube in the manner indicated. The tube shall be subjected to the specified acceleration in the X, Y, and Z axes, with six shocks in each axis. Tubes showing any permanent shorts, or more than one temporary short during the test, shall be rejected. The
43、 applied shock shall be an approximate half-sine wave motion with duration measured at the zero-axis level. 9/ This test shall be performed during the initial production and then annually thereafter. Sample shall consist of three tubes with an acceptance number of zero. In the event of a failure, th
44、e test will be made as a part of conformance inspection, part 2, acceptance level 6.5 of MIL-PRF-1 Table III . The annual sampling plan shall be reinstated after three consecutive samples have been accepted. 10/ During the performance of life-test (5), the rf grid driving voltage and the bias voltag
45、e shall be monitored and held constant. The bias voltage shall be adjusted to produce the specified value of Ibo and the rf drive shall be adjusted to produce the specified anode current of 250 mA dc during an initial adjustment period not to exceed 4 hours. In no case shall the grid be driven posit
46、ive with respect to the cathode as indicated by a grid current of 50 A dc maximum. At the conclusion of the life-test period, the change (Ib) in the anode current from the initial value of 250 mA dc, and the power output (Po), both being read in the life-test equipment itself, shall be read and the
47、tube shall meet the listed requirements for these parameters. Prior to the performance of life-test (5), the tube shall have met the requirements of the linear amplifier power output and distortion test. 11/ Heater voltage shall be cycled approximately 2.0 minutes “on“ and 4.0 minutes “off“. No grid-cathode shorts are permitted during or after life test. For qualification, data on a sample of 10 tubes shall be submitted. 12/ The tube shall be mounted in an air-system socket (EIMAC SK-710, with SK-606 chimney, or equivalents) arranged
