DX 100 parasitic (?) problem on 10 meters

[Huttinger]

Hi,
    I acquired a DX 100 with problems a few years ago.  My DX 100 works okay
now on the band I use it on (160) though the output has gradually fallen off
to around 60 watts for no apparent reason.  I have plenty of drive on all
bands and the finals check good on an emission type tube tester.  I also
have a problem on 10M though different from Glen's.  If I try to crank up
the drive at all above zero mA I get a loud hum from the power supply and
the house 15 Amp circuit breaker throws indicating a huge current draw.  The
puzzling part is why don't the fuses in the DX 100 blow?  I think I am
getting a parasitic oscillation though  that theory doesn't seem right since
I don't get an abnormal plate current reading when the overload occurs.  My
only guess is I may have another capacitor in the output stage somewhere
that is bad.   Any hints or clues on what may be happening would be
appreciated.  I would take crystal ball information as well!
Mike

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