I am in need of the FM board for the FT 840. It is the FM-747 which is the same board used in the FT 747 I believe. I would also like the 500 hz CW filter for the FT840, YF-112C. Alternative would be the INRAD filter. Please tell me what you have and how much via w4bws1 at gmail.com. Thanks Dr Don HC4/W4BWS