Roelof,
Many thanks for the captures and reports. The morning peak was
dramatic. Perhaps the depressed DST is not so bad. The TX is
behaving well, now that the ice is off the tower. Another run
is planned for tonight and tomorrow morning until 0900.
Laurence, thanks for your story on the warm L2. As Alan says
it does take a lot of current. There are bigger wires in the
junk box so the next step is to try that. The heat should be
doing something more useful such as warming the worms in the back
yard. Thanks for listening in XE. That would be a nice one!
Hi John KB5NJT. Thank-you for the suggestion of the torroid cores
and congrats on 18000 hrs on your fets. The IRFP140 was tried
when it was leanrnt that the IRF540 was a 100 volt device and all the
IRFP250 and IRF640's had given up their smoke. Alan's FET's also enjoy a
long and productive life. Perhaps Mother Nature plays a role in
the high fet mortality at this station. It's common for aerials to get
iced, shorted and open circuited. If anyone would like to give their
TX a harsh-environment test, this is the QTH for that.
73 to all
Joe VO1NA
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