685) Coaxial Directional Coupler Narda Microwave Corp "Microline" model 22836. 2500-5500 mhz, extra 20db coupling. "N" coax connectors. Used. Untested, good physical condx but some paint flecking on case. 4" L x 2"W x 1" D. Pix avail. From an estate of retired microwave engineer. Price $25 plus postage.73 Walt (N4GL)(352) 637-1755