[Heathkit] HW 101 problem
Jim Fisk
w0jlf at msn.com
Fri Apr 24 09:15:54 EDT 2009
Thanks to all that replied, I will try to work on it again this weekend.
73
Jim
> Date: Thu, 23 Apr 2009 22:23:59 -0500
> From: jaydawg at dfwair.net
> To: w0jlf at msn.com
> Subject: Re: [Heathkit] HW 101 problem
>
> You mentioned it was arcing from the tuning cap to the frame.
> I had a similar issue with a Swan 350. Ultimatly the problem was dirty transmit contacts on the T/R relay.
> Basiclly the transmitter was running into no load..would recieve great but on xmt the fire began LOL.
> About 15 minutes of burnishing and De-Oxit cured the problem.
>
> Another thought, after the P/S rebuild did you check the bias setting?
>
> and last, is this an "all band" problem or limited to 15m and 10m?
> If that's the case check neutralization.
>
> Hope this helps..
> "Jay" NS5F
>
> -----Original message-----
> From: "Jim Fisk" w0jlf at msn.com
> Date: Thu, 23 Apr 2009 19:28:28 -0500
> To: Heathkit at mailman.qth.net
> Subject: [Heathkit] HW 101 problem
>
> > I am working on my HW101, it has developed a problem when tuning up
> >
> > When I get close to 5/8ths of the way on the rf out meter scale it jumps and
> > pins the meter then it also starts arcing
> >
> > On the side of the final tuning center section of the capacitor to the
> > frame.
> >
> > If I stop tuning before arcing starts unit seems to transmit O.K.
> >
> > The only thing that has changed lately in the system is a rebuild of the
> > power supply about 6 months ago.
> >
> > Do I have a 6146 going bad?
> >
> > Any ideas?
> >
> > Thanks
> >
> > Jim
> >
> >
> >
> >
> >
> >
> >
> >
> >
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