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Kay Groß | profile | all galleries >> Galleries >> power modification at the FT221R tree view | thumbnails | slideshow

power modification at the FT221R

one possible modification to reduce the power of a FT221.
It works good on FM and CW, but not so good on SSB because
it changes the linearity.It is simple to do and there is
nothing to see outside the rig.If you do so you do it on
your own risk.
What I forgot to mention ,the modification is on the solder side
of the exciter unit.
good luck Kay DL5OAQ
cut of the printed conductor on both sides
cut of the printed conductor on both sides
solder a screened wire  with a pot 10k to 25k linear
solder a screened wire with a pot 10k to 25k linear
a possible way to mount the pot
a possible way to mount the pot
not really a yaesu
not really a yaesu