Richard -
The manual for an RME DB22-A preselector, available for download at the BAMA
archive
http://bama.edebris.com/manuals/rme/db22a/ should give you some ideas.

--Chuck
"Richard" wrote in message
...
Now I know this is a bit OT, but can anyone recommend me any sites on how
to
build a pre selector for the MW band. Several times tried google searches,
but only came up with commerical ones, and ideally I would like to build
one
myself.

Any leads greatly appreciated,

Richard, Warsaw