[AMRadio] DX-100 vfo

[russ dworakowski]

Yes OK Jim, thanks for  your input.  In addition to  the VFO problem,
I see now that there is no grid drive  on   160 or 80.  So maybe a good
idea to fix that first.  The VFO seems to be a weak point in the DX-100,
but  other areas are easy to fix- audio etc.  This DX-100 was a parts rig,  
and I found all the parts to put it back together.  Working on 40 meters 
just fine-  except for the reverse tracking on the VFO.  Should have tested 
it before remounting it in the rig.  Trying to get around  removing it 
again.    The potted iron in a DX-100 make it a great project-  well worth 
the effort.






>From: "Tommye & Jim Wilhite" <w5jo at alluretech.net>
>Reply-To: amradio at mailman.qth.net
>To: <amradio at mailman.qth.net>
>Subject: Re: [AMRadio] DX-100 vfo
>Date: Thu, 9 Jan 2003 13:01:16 -0700
>
>Russ:
>
>Your story sounds like the problems I had with my DX 100.  Low to no
>grid drive I traced to the socket for the 12BY7 and after replacing
>it the thing took off like nobody's business (there were some other
>minor components weak as well).
>
>I changed the coupling caps in the audio circuit, increased the
>decoupling caps and put in a little negative feedback.  I get better
>reports than before the mods.  Don't know why I have a soft spot for
>the DX 100 but it is really a good radio.  Have fun with yours.
>
>73  Jim
>de W5JO
>
>----- Original Message -----
>From: "russ dworakowski" <wb3fau at hotmail.com>
>To: <amradio at mailman.qth.net>
>Sent: Thursday, January 09, 2003 10:57 AM
>Subject: RE: [AMRadio] DX-100 vfo
>
>
> > Yes George,  its a jugsaw puzzle,  this is a complete basket case
> > rebuild,  been a lot of fun though.  Just a few more pieces to
>figure out-
> > hi.  I have it on the air-  getting great audio rpts!  Just minor
>audio
> > mods.  Russ.
> >
> >
> >
> >
> >
>
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