[TenTec] Identifying Filter Boards

[JT Croteau]

I have either a 217, 218, or a 219 filter board but not seeing any
markings on the filter to identify what exactly it is.  It has 4
crystals and one crystal is marked with 8233.  The bottom of the board
is stamped with 584L (this is most likely the part number for the
board and common to most filters).

Any ideas?

Thanks

--
 JT Croteau - W6FO - Canton, GA
 ARS #2,147 | NoGA-QRP | SEDXC | SECC | ARRL