[Heath] DX-100 Ideas

Thu Sep 29 18:59:13 EDT 2011

Thanks everyone.  I have the manuals.

Sent from my Palm Pre on AT&T
On Sep 29, 2011 3:53 PM, Tom Chesek <tchesek at epix.net> wrote: 

Here you go.

Tom K3TVC

From: Louis Ciotti 
Sent: Thursday, September 29, 2011 1:58 PM
To: heath at puck.nether.net 
Subject: Re: [Heath] DX-100 Ideas

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

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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