SOLICITATION NOTICE
D -- ELECTRON TUBE, MAGNETRON
- Notice Date
- 6/3/2004
- Notice Type
- Solicitation Notice
- NAICS
- 334411
— Electron Tube Manufacturing
- Contracting Office
- Department of the Navy, Naval Air Systems Command, Naval Air Warfare Center Weapons Division Dept. 3, Commander, NAWCWD, Code 230000E, 575 I Ave, Suite 1, Point Mugu, CA, 93042-5049
- ZIP Code
- 93042-5049
- Solicitation Number
- N68936-04-T-0128
- Response Due
- 6/16/2004
- Archive Date
- 7/1/2004
- Point of Contact
- Josie Babcock, Purchasing Agent, Phone (805) 989-1995, Fax (805) 989-8241,
- E-Mail Address
-
josie.babcock@navy.mil
- Description
- SPECIFICATION ELECTRON TUBE, MAGNETRON - 7.8 to 8.5 GHz, 20 Kilowatt peak output power. The complete requirements for procuring the coaxial pulsed magnetron described herein shall consist of this document and the latest issue of specifications, Mil-PRF-1 and Mil-Std-1311 Tunable frequency 7.8 to 8.5 GHz integral magnet, air-cooled, 20 Kw nominal peak power output, for land, seaborne and airborne in both manned and unmanned platforms. These ratings are interrelated, and it does not necessarily follow that combinations of ratings can be obtained simultaneously. The temperature is to be measured at the point indicated on drawing 1236AS3240. The tuning mechanism shall be capable of withstanding a static torque of in-oz listed in maximum box at the ends of its travel. The magnetron shall be capable of normal operation without electrical breakdown with the input bushing in air to normal atmospheric conditions. Prior to the application of high voltage, the cathode shall be heated to the required initial operating temperature. Voltage and time as shown in test conditions. The characteristics of the applied pulse must be those that result in proper starting and oscillation. The rate of rise of the voltage pulse (rrv), the percentage of pulse voltage ripple, and the rate of pulse voltage fall are among the more important considerations. The rate of rise of voltage (rrv) shall be expressed in kilovolts per microsecond (kv/µs) defined by the steepest tangent to the leading edge of the voltage pulse above the 70 percent amplitude point. Any capacitance used in the viewing (measuring) circuit shall not exceed 6 Pico farads (pf). In handling and mounting the magnetron, care must be exercised to prevent demagnetization. The use of magnetic inspection tools is prohibited. Care must be taken to avoid excessive Shock and Vibration. The north-pointing end of a compass needle shall point to the bottom pole (end nearest cathode lead) of the magnetron. With a total airflow of approximately 35 c.f.m. at approximately 760 mm. Hg., 25°C, divided equally and directed through the cooling fins toward the body of the tube from two ducts placed 1/2 to 1 inch from the cooling fins, the specified rise above ambient temperature shall not be exceeded. With a total airflow of approximately 35 c.f.m. at approximately 760 mm. Hg., 25°C, divided equally and directed through the cooling fins toward the body of the tube from two ducts placed 1/2 to 1 inch from the cooling fins, the specified rise above ambient temperature shall not be exceeded. Temperature measurements shall be made only after thermal equilibrium has been reached. The frequency shall be measured at the extremes of any 30°C temperature range. Alternate- Over the specified temperature and frequency ranges, the temperature coefficient shall not exceed the specified limit, for purpose of testing the extreme frequency point will be used. The tube shall be subjected to five shocks of the specified peak amplitude and duration in each of three mutually perpendicular directions. Following impact test, the tube shall show no mechanical failure, and shall meet all mechanical, power output, pulse, frequency and voltage requirements of First Article test condition. The magnetron shall be mounted in a resonance free jig and vibrated with sinusoidal excitation in each of three mutually perpendicular planes through the following amplitudes: Cycling test: The frequency shall vary from 5-500-5 Hz with approximately logarithmic progression, and shall require approximately thirty minutes to traverse the range. This constitutes one cycle. The magnetron shall be vibrated for one such cycle in each of the three planes. Resonance test: Mechanical resonant frequencies of the magnetron shall be determined during the cycling test. The tube shall then be vibrated at the indicated resonant conditions for a period of 30 minutes. If more than one resonant frequency is encountered, the test period may be accomplished at the most severe resonance, or the period may be divided among the resonant frequencies whichever is most likely to produce a failure. Frequency Modulation measurements during vibration - peak-to-peak frequency deviation shall not exceed the specifications, excluding frequency pushing and thermal drift. Frequency modulation is defined as inter-pulse frequency changes, commonly know as "Clatter". The frequency range F1 to F3 shall be traversed by a tuning shaft as stated in maximum block, in some cases mechanical over shall be provided on each end of the tuning range before contacting mechanical stops. No damage shall be caused by contacting the mechanical stops. The frequency obtained by turning the shaft to a given angular position in one direction shall be reproducible within the specified limits when returning to the same position from the opposite direction after thermal equilibrium. Operation outside the upper and lower frequency limit is not recommended since permanent tube damage may result. Caution: It is important when supplying a D.C. input to the Filament of this tube that the heater terminal be operated negative in polarity w/ respect to the heater cathode terminal. Failure to observe this precaution may result in permanent damage to the tube. The solicitation will be issued on or about June 16, 2004 and will be available through the 2.0 Contracts Competency home pages at: https://contracts.nawcwd.navy.mil/rfp-nawc.htm NOTE: THIS NOTICE WAS NOT POSTED TO WWW.FEDBIZOPPS.GOV ON THE DATE INDICATED IN THE NOTICE ITSELF (03-JUN-2004); HOWEVER, IT DID APPEAR IN THE FEDBIZOPPS FTP FEED ON THIS DATE. PLEASE CONTACT fbo.support@gsa.gov REGARDING THIS ISSUE.
- Web Link
-
Link to FedBizOpps document.
(http://www.eps.gov/spg/DON/NAVAIR/N68936D3/N68936-04-T-0128/listing.html)
- Place of Performance
- Address: N/A
- Record
- SN00596685-F 20040605/040603212800 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)
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