Anyone ever run RTTY on a Argosy 525? I've read in the manual that TT recommends adding a fan to the finals heat sink for things like RTTY but are there any other gotchas? I have a 525 that I am cleaning up and thinking of making it into a dedicated rig for AFSK. Thanks -- JT Croteau - W6FO - Canton, GA ARS #2,147 | NoGA-QRP | SEDXC | SECC | ARRL