[Yaesu] FT1000D swr problem

[Keith Morehouse]

Willem Braeckevelt wrote:
>
>Hi,oms
>Since last week if i go over 60w out swr becomes over
>2.5 on dummy also, try higher power output is cut
>fastly to min.

Willem, this happened to me a number of years ago
after extended operation in a 160 contest.  One of the
large chip blocking capacitors in the output PN switch
assembly had heated so badly (I assume due to extended
running at 200W into a non-50j0 load) the solder had
reflowed.  Replacing and resoldering the chip cap
cured the problem, which has not reappeared.

I don't remember which cap it was - it was much larger
then most so it was probably a series cap in the RF
output path.  It will be obvious if this is the
problem.

-73-

keith
W9RM

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