[Heath] DX-100 Ideas

[Louis Ciotti]

Anyone have a pdf of the DX-100 manual (Both operation and Assembly)?

 <heath at puck.nether.net>


On Thu, Sep 29, 2011 at 5:32 AM, Bry Carling <bcarling at cfl.rr.com> wrote:

> **
> Most replacement caps will not fit under the DX100 chassis.
>
> I have an original Heathkit one if you need a replacement.
>
> I also have rplacement parts for almost amything you could need for a
> Heathkit DX100 - all the transformers, choke VFO, tubes, knobs, crystals,
> variable caps, switches, meter, front panel, a shiny chassis too (yes!)
>
> Just let me know what you need and we will arrange something suitable to
> get that
> rig in perfect shape..
>
> On 29 Sep 2011 at 3:38, Pigman wrote:
>
> > First off,  I built a DX-100 as a kid back in the mid 50s and have
> > always had a soft place in my heart for them.  That said,  I need
> > some ideas from you gents.
> >
> > A long time ago,  I acquired and pretty sad looking DX-100.  The
> > price was right, FREE!  It is all there.  The front panel looks
> > pretty nice.  However, everything else goes down hill from there.
> > It is dirty, scratched cabinet and a fairly ugly copper plated
> > chassis with rust. Of course, the paper and electrolytic caps are
> > most likely bad and there are probably a bunch of out of tolerence
> > resistors in it too.  I am thinking of radically restoring the
> > transmitter.
> >
> > I am thinking of taking it totally apart, have the chassis pieces re
> > plated, maybe make a new wiring harness and then build it up again
> > with many new caps and new carbon resistors as a new kit.  (I'll re
> > use the temperature compensating caps and most likely the precision
> > resistors and certainly the variable caps).  I'll also repaint the
> > cabinet as original or at least close to it. When finished, it
> > should look very nice.
> >
> > The one thing that really bugs me is the loading cap.  As a kid,  I
> > blew up that "stacked Heathkit home made multi-section loading cap"
> > in the rig. I bought a upgrade kit from Heathkit to replace it with,
> > I think, 3 or 4 new transmitting mica caps which were real
> > transmitting mica caps.  I think maybe Heathkit also later on sold a
> > 3 section loading cap as used in the Apache to also replace this
> > "stacked" mica.  Of course non of these upgrade kits are offered
> > today.  So my question is, when I rebuild the DX-100, I don't want
> > to use that old 3 section Heathkit made "stacked" loading cap.  I
> > know it is a poor cap to use.  What do I use in it's place?  Could I
> > maybe find a 3 section 365pf variable and put it in there? Will it
> > fit?  I'm wondering what others have done when faced with this
> > problem.  I would even consider using the fixed transmitting caps as
> > used in one of Heath's upgrade kits if I could find them. (200pf,
> > 400 pf, 600 pf, and 800 pf). I just hate to think of using that
> > "stacked" home made loading cap Heath supplied with this kit.
> >
> > I'd appreciate hearing from others on how they approached this weak
> > link in the original DX-100 transmitter.
> >
> > Lee, w0vt
> > Houston, TX
> >
> >
> >
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