Try Henry Westlake, Tom. He advertises in Radcom and sells some very quality connectors. http://whwestlake.110mb.com/ 73 Peter G3PHO tom wylie wrote: > Anybody got any idea where I can get good quality > SO-239 50 Ohm Chassis Mounting Socket 4 hole > with a PTFE insulator > > I'm not interested in the cheap CB type. Birkett dont have any. > > > Tom > GM4FDM