Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, Massachusetts 02138-1516

59 -- FREQUENCY TRIPLER AND FREQUENCY DOUBLER FOR 600 GHZ LOCAL OSCILLATOR UNIT SOL RFP-BF6077 DUE 021600 POC EJ Dotts, Contracting Officer, 617-496-7562, 617-496-7978(fax), edotts@cfa.harvard.edu The Smithsonian Astrophysical Observatory (SAO) intends to award on a sole source basis a contract to Radiometer Physics, Birkenmaarstr. 10, 53340 Meckenheim, Germany, per justification pursuant to FAR 13.106, Only One Responsible Source and No Other Supplies or Services Will Satisfy Agency Requirements. We require one (1) Frequency Tripler and one (1) Frequency Doubler. The Frequency Tripler must meet the following requirements: a) input 200 -- 232 GHz at 4 mW min.; b) output 600 -- 696 GHz at 25 micro-watt min; c) power output through a corrugated feed horn with an aperture diameter 2 mm and a distance of 5.2 mm from apex to aperture; and d) the unit should incorporate a maximum of two (2) mechanical tuners for the entire LO chain. The Frequency Doubler must have an output of 200 -- 232 GHz with an output power of 4mW min. and an input waveguide WR-8 with a modified UG387 flange. No other source is known for these parts that meet all of our requirements. These units are spares for our current Frequency Triplers and Frequency Doublers from Radiometer Physics. It is imperative that the spare units are identical to the original units in the 600 GHz Local Oscillator unit. The desired delivery date for the required items is 1 August 2000. The FOB point is destination, Cambridge, MA. This acquisition will be accomplished using simplified acquisition procedures in accordance with the Federal Acquisition Regulation Part 13. The applicable SIC code is 3825 and the size standard is 500. No solicitation package will be issued. Information received will normally be considered solely for the purpose of determining whether to conduct a competitive procurement. A determination by SAO to not compete this effort on a full and open competitive basis, based upon responses to this notice, is solely within the discretion of SAO. Questions or comments may be directed to EJ Dotts at 617-496-7562, or by e-mail at edotts@cfa.harvard.edu. Posted 02/07/00 (W-SN422572). (0038)

Loren Data Corp. http://www.ld.com (SYN# 0226 20000209\59-0007.SOL)