1、I INCH-POUND I MIL-PRF-I/1709B 2 Auqust 1999 SUPERSEDING 26 June 1985 MI L-E-1 /I 709A Parameter: Unit: Maxim um : Minimum: PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, GAS SWITCHING TYPE8919 * This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. T
2、he requirements for acquiring the electron tube described herein shall consist of this document and the latest issue of MIL-PRF-I. Incident power Du tP TA Altitude kw _ P OC feet 300 0.001 1.15 71 10,000 _ 10 _ _ 4 DESCRIPTION: Passive TR-limiter, bandpass, frequency range 5,395 to 5,905 MHz Paramet
3、er: Unit: Tolerance: Incident tP Prr F power fi 0% fO.10 _ kw P PPS MHz f5% PHYSICAL CHARACTERISTICS: See figure I. Mounting: Mates with UG-406B/U choke flange or equivalent Weight: 2 pounds (approximate). Test condition 1 : Test condition 2: Test condition 3: TEST CONDITIONS: 40 1 .o 1,000 F3 70 1
4、.o 1,000 F3 300 1 .o 1,000 F3 GENERAL: Qualification - Required. * See z/ at end of table I. AMSC N/A 1 Of5 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. It7-pq-j Fre uenc FSC 5960 Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
5、e from IHS-,-,-Inspection Conformance inspection, partl Low level VSWR Insertion loss Flat leakage power, peak (max) Flat leakage power Spike leakage energy Position of short Arc loss Tem perat u re cycling (nonoperating) Conformance inspection. Group C Symbol o o o o o Li Pb Pf ws Distance Loss _ _
6、. t t t t Pf ws Li _ lits Max 1.9 1.4 1.4 1.4 1.9 0.5 1 O0 50 0.10 f0.015 0.80 _ _ 5 _ _ 10 70 0.1 0.8 _ 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Testinci and inspection - Continued - I/ Unless otherwise specified, the acceptance le
7、vel for all tests listed under conformance inspection, pari 1, shall be 1 .O, in accordance with the accept on zero defect (c = O) sampling plans, Table 111 of MIL-PRF-I. - 2/ A swept-frequency method may be used for this test - 3/ The maximum peak flat leakage shall not exceed the specified limit w
8、hen tested from zero to 4 kw peak power. - 4/ The position of shod shall be 0.085 inch (2.16 mm) further from the magnetron within the limits specified - 5/ The input flange only of the tube under test (TUT) shall be immersed in water during this test. - 6/ At the conclusion of this test, the TUT sh
9、all satisfy the specified recovery time test - 7/ This type physically and functionally replaces types MD-80C17 and VDC-1029 (NSN 5960-00-1 06-0423) and can replace type 5865 (5960-00-262-01 74). This information in no way implies that the manufacturers types are suitable as substitutes for the mili
10、tary types. NOTE: When type 5865 is replaced by type 891 9, the keep-alive (ignitor) supply shall be disabled and the lead removed or tied securely. - 8/ This test shall be performed only during qualification inspection. - 9/ This test (or figure 1 dimensions) shall be performed (or checked) during
11、the initial production and once each succeeding 12- calendar month period in which there is production. A regular double sampling plan shall be used, with the first sample of three tubes having an acceptance number of zero, and a second sample of three tubes having a combined acceptance number of on
12、e. In the event of failure, these dimensions shall be made as a pari of conformance inspection, pari 2, with an acceptance level of 6.5, inspection level S3 (code D for figure 1 dimensions). The regular “1 2-calendar month“ double sampling plan shall be reinstated after three consecutive samples hav
13、e been accepted. - 1 O/ Revision letters are not used in this revision to identify changes with respect to the previous issue due to the extensiveness of the changes. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Dl -F- A D F INPUT I NOTE 1 44“ 4
14、6“ ,235 I ,265 5.97 I 6.73 3.610 I 3.640 91.69 I 92.46 I I E t 7 3 8 -c HOLES HOLES Dimensions Inches Millimeters Conformance inspection, part 1 2.100 53.85 22.86 .I 30 3.30 Conformance inspection, part 2 BI 3.245 I 3.255 I 82.42 I 82.68 JI _ I 1.500 I _ I 30.10 I Periodic inspection 9/ OPTIONAL I -
15、8 NOTES: I. The reservoir overall dimensions shall not exceed the dimensional requirements and shall be physically and functionally 2. Silver plate 100 msi minimum, semi-bright nickel, or equivalent. compatible and interchangeable in all applications to the tube types in z/. FIGURE I. Outline drawin
16、q of electron tube type 8919 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Custodians: Army - CR Navy - EC Air Force - 11 Review activities: Army - AR Navy - AS, CG, MC, OS Air Force - 17, 99 Preparing activity: DLA - CC (Project 5960-3483) 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
