DOC; Mountain Administrative Support Center; Acquisition Management Division; 325 Broadway MC3; Boulder, CO

59 -- TRANSISTORS FOR USE IN WIND PROFILERS SOL NRMGM-903015DT DUE 031299 POC Doris Turner, Purchasing Agent, 303-497-3872; FAX: 303-497-3163 E-MAIL: NOAA; MASC Acquisition Management, Doris.P.Turner@noaa.gov. The National Oceanic and Atmospheric Administration (NOAA) proposes to negotiate on a sole source basis with AMT, 2570 E. Cerritos Ave. Anaheim, CA 92806 to provide 400 transistors for use in wind profilers located in a 17-state area of the central U.S. for use by the National Weather Service in weather forecasting. The transistor manufacturer, Thompson, discontinued the SD1564-H4 transistor used in the transmitter. AMT purchased stock sufficient to cover our current needs. The following specifications cover the requirements for the NPN, silicon RF transistors required (P/N SD1564-H4). Maximum ratings: Collector -- base voltage, 65 Volts dc; Collector -- emitter voltage, 30 Volts dc; Emitter -- base voltage, 3.5 Volts dc; Collector current -- continuous, 28.8 Amps dc; Total power dissipation, 1167.0 W(Pulsed); Operating junction temperature range, -65 to +200 degrees C; Storage temperature range, -65 to +150 degrees C. Burn-in test: all devices shall be capable of operation for 160 hours minimum under the following conditions: Temperature ambient, 25 degrees C; Voltage collector base, 10 Voltage dc, minimum; Junction Temperature, 150 degrees C, minimum; operated at a sufficient power to obtain specified junction temperature, 150 degree C, minimum. We have a more complete specification package, i.e. the AMT Source Control Drawing, that completely describes our need. Anyone who plans on responding should request a copy of that source control drawing to ensure that they fully understand our specifications. Interested sources proposing to supply an equivalent item must submit a written qualification statement by fax, clearly establishing capability to meet the above requirements within 15 days from the date of this synopsis. In the absence of other qualified sources, it is the intent of the government to negotiate a sole source contract under the authority of 41 U.S.C. 253 (c) (1) with AMT, 2570 E. Cerritos Ave., Anaheim, CA 92806 as this source is considered to be the only known qualified source which will satisfy agency requirements. This announcement is being issued under the Simplified Acquisition Procedures, FAR Part 13 (NTE $100,000.00). Agency level protest procedures are at http://www.doc.gov/oam/conops/#REFERENCE. FAR Clauses in full text are at http://www.ARNET.gov/far/. Posted 02/22/99 (D-SN300718). (0053)

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