1、INCH POUND MIL-PRF-1/211G 16 June 2003 SUPERSEDING MIL-PRF-1/211F 26 June 1998 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, POWER TYPE 3C24 This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acquiring the electron tube descri
2、bed herein shall consist of this document and the latest issue of MIL-PRF-1. DESCRIPTION: Triode. See figure 1. Mounting position: Vertical, base down or up. Weight: 1.5-ounces nominal (42.5 grams). ABSOLUTE RATINGS: C telegraphy. Parameter: F1 Ef Eb Ec Ib Ic PpUnit: MHz V ac kV dc V dc mA dc mA dc
3、W Maximum: 60 6.6 2.0 -500 75 25 25 Minimum: - - - 6.0 - - - - - - - - - - - - - - - Test conditions: - - - 6.3 1.0 Adjust 35 - - - - - - GENERAL: Qualification - required. AMSC N/A 1 of 5 FSC 5960 DISTRIBUTION STATEMENT A: Approved for public release, distribution is unlimited. Provided by IHSNot f
4、or ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/211G 2TABLE I. Testing and inspection. Inspection Method Conditions Acceptance Level (see note 2) Symbol Limits Min Limits Max Unit Conformance inspection, part 1 Peak emission Electrode voltage (grid) Total grid
5、 current Filament current 1231 1261 1266 1301 eb = ec = 1,000 v note 1 0.65 0.65 0.65 0.65 is Ec Ic If 1.5 -14 - - - 2.80 - - - -24 -5.0 3.15 a V dc A dc Aac Conformance inspection, part 2 Low-frequency vibration Bump Power oscillation Amplification factor Direct-interelectrode capacitance 1031 1036
6、 1236 1316 1331 Rp = 2,000 ; Eb = 250 V dc; Ec/Ib = 10 mA dc Angle = 25 F = 100 MHz; Eb = 1,000 V dc; Ib = 80 mA dc; Ic = 25 mA dc No shield - - - - - - - - - - - - - - - Ep - - - Po Mu Cgp Cin Cout - - - - - - 45 22 1.4 1.4 0.1 500 - - - - - - 28 1.8 2.2 0.3 mV ac - - - W - - - pF pF pF Conformance
7、 inspection, part 3 Life test Life-test end point: Peak emission - - - - - - 1231 Group C; Pp = 25 W; t = 500 hours - - - - - - - - - is - - - 1.0 - - - - - - - - - a NOTE: 1. This test is to be the first test performed at the conclusion of the holding period. 2. This specification sheet uses accept
8、 on zero defect sampling plan, in accordance with MIL-PRF-1, table III. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/211G 3FIGURE 1. Outline drawing of electron tube type 3C24. See notes at end of Figure I. Pin connections Pin no. Elemen
9、ts 1 2 3 4 Anode lead Grid lead f nc nc f a g Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/211G 4Alternate base, 4 pin, metal shell with ceramic wafer insert. Dimensions Ltr Minimum Maximum Conformance inspection, part 2 A 4.000 (101.60)
10、 4.375 (111.13) B 1.313 (33.35) 1.438 (36.53) C 3.404 (86.46) D 1.437 (36.50) 1.687 (42.85) E 1.100 (27.94) 1.300 (33.02) F 0.310 (7.87) 0.440 (11.18) G 0.045 (1.14) 0.051 (1.30) Conformance inspection, part 3 (see note 5) H Base: A4-5 (see note 2) J 1.137 (28.88) 1.165 (29.59) K 0.820 (20.83) 0.850
11、 (21.59) Reference dimensions M 0.032 (0.81) N 0.563 (14.30) NOTES: 1. For pin alignment, use gage GA4-1. 2. A metal shell base with ceramic wafer insert may be used. 3. Deviation of centerline of anode lead from centerline of base shall not exceed 0.125 (3.18 mm). 4. Deviation of centerline of grid
12、 lead from centerline of base shall not exceed 3. 5. These dimensions shall be tested annually. FIGURE 1. Outline drawing of electron tube type 3C24 - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/211G 5Custodians: Preparing activities: Army - CR DLA - CC Navy - EC Air Force - 11 (Project 5960-3675) DLA - CC Review activities: Army - AR Navy - AS, CG, MC, OS, SH Air Force - 99 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
