But designing microwave PCBs requires significant effort, interesting feature of wirewrap is that it tends to work without careful layout to suprisingly high fr

But designing microwave PCBs requires significant effort, interesting feature of wirewrap is that it tends to work without careful layout to suprisingly high frequencies (~10MHz) that would start to require careful design for PCBs. Getting wirewrap guns or wire probably isn't much of problem but what I cannot find for reasonable prices are wirewrap boards.