[TenTec] Diff between Omni 546C and 546B

[wa9dgm at aol.com]

B- YOU HAD A CHOICE OF XTAL FILTER PLUS An AUDIO FILTER IN OR OUT THAT WAS  
TIED TO THE XTAL FILTER INSTALLED. C-XTAL AND AUDIO FILTER WERE INDEPENDENT OF  
EACH IN CHOICE. B- WAS OFFERED AS A  UPGRADE KIT  OR FACTORY BUILT.  WARC 
BAND WAS A KIT NEXT TO IMPOSSIBLE TO FIND. 73 JOHN  WA9DGM/6