Regina used Columbia phonograph parts on many of their machines.  The
same horn from an outside Columbia, especially the nickel-plated one,
and a 10-inch turntable from an outside horn machine will probably
work.  Collectors and or dealers in antique phonographs can probably
supply these parts.  The last extra Columbia nickel-plated horn that
I had went to a music box dealer for use in a Reginaphone.

Randy Hammond