Just digging through and found my Ramsey FM model FX 440 radio.  Does anyone have information on these for modifications on the synthesizer?  Still have the schematics, etc, but I believe someone did come up with a mod for the synthesizer.<div dir="auto"><br></div><div dir="auto">Thanks,</div><div dir="auto"><br></div><div dir="auto">John WD5ENU</div>