I'm pretty darn sure that 6146Ws can be used in place of 6146Bs. All the Collins gear I saw in the Military used 6146Ws for finals. Bob N0DGN WØQFC wrote: > Is the 6146W a good replacement for the 6146B? > These are the finals in a Swan 250C. > > Thanks es 73, > > Gene, WØQFC (OK on QRZ) > Spring Hill, Florida 34606 > WEB SITE: > http://www.w0qfc.com >