From experience, I might recommend one of the cheaper, tunable MFJ
preselectors, with or without a preamp, or perhaps an older Ameco PCLP
or Palomar tunable preamp. Any of these will improve the performance of
an inexpensive receiver, especially on the higher frequencies. Of
course, with any inexpensive receiver, an increase in front-end gain may
also introduce an increase in images, etc. There are trade-offs.

Jack Schmidling wrote:
I am looking to make or by a pre-selector for my S38 receiver.

Anyone have one or any ideas?

js