FT847 4m mods.
This mods you get more power on 4m from the FT847
Remove CNTL board to access the HF/6m/4m PA Remove only 4 skrews mark with red arrows!!!
Flip CNTL board and remove sheild between CNTL board and PA
Insert Ferrit into coil, I have used a ferrit tube and find out only half inside coil was enough
After mods I have 60W output and current is now only 12-14 amps