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Wednesday, December 14, 2022

Direct Conversion Receiver — There is a Lot to Learn from this Simple De...

This looks to be a cool project.

This is a project from Bill (N2CQR), the Soldersmoke guy and Dean (KK4DAS).



Saturday, March 5, 2022

QRP-Labs Clock Kit


Clock Kit

Project: QRP-Labs clock kit by Hans Summers

General Notes

    Assembled (mostly) and working! 


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Build Notes

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Operation Notes

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  1. Link to Assembly Manual
  2.  Link to Operating Manual

Copyright © 2022 by David Billsbrough (KC4ZVW)

Somedays it's just not worth chewing through the restraints ...

Friday, January 7, 2022

Melting Solder Again

Kit Building - some quick hints

  • Clean work surface with good lighting
  • Use a small vise or helping hand to hold your work
  • Good soldering iron and means to keep heater tips clean
  • Assortment of small hand tools  (see below)
  • Digital Multimeter (DVM) and knowlegde to use it well
  • Collect and archive documentation for your projects
  • Your brain sober and not too tired. Keep your work sessions short and pace yourself.



"Once upon a time I had created an entry like this Blog topic on my old Earthlink web pages but it must have gotten lost."

So off to the Wayback machine to search for it.  Did sort of had success in finding it and will try to recreate here.

Build Notes

 1. Get a couple of 'plastic' shoe boxes to store your unfinished projects. It keeps all the parts together and it makes it easier to haul out and get started when you find the time.

2. Clear off a table to get a good work surface and get a cheap desk lamp to provide good lighting and some sort of magnification with a hand or head mounted device.

3. Keep your soldering iron in good shape. Clean your heater tip and re-tin with flesh solder each time before you unplug it. An expensive temperature controlled iron is not required. Have extra tips and different heating elements.

4. Get a good iron holder with a cleaning kit.  Wipe the heater tip often and re-tin. It is hard to concentrate on your kit if you keep chasing the soldering iron from rolling off the table into your lap.

Operation Notes

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About simple hand tools

  1. Small vise or "helping hand"
  2. Bottle of flux and a dispenser
  3. Solder braid
  4. Vacuum solder puller
  5. Plastic or wooden stick
  6.  Small needle-nose pliers
  7.  Small diagonal cutters
  8.  Roll of masking tape in a dispenser
  9.  Isopropyl alcohol in one of those pump bottles
  10.  Small stiff brushes including old tooth brushes
  11.  Assorted screw and nut drivers.
  12.  Assorted cups, pans, glass jars, and small boxes to sort your parts and for storage. A Styrofoam egg carton works for temporary storage of small parts while building.
  13.  Hemostats. At least two. Bent nose ones are the best.
  14.  A dental pick or two.
  15.  Exacto knife, for making tiny labels out of masking tape among other things....
  16.  Jumper wires with insulated alligator clips. Several.
  17.  A decent magnifying glass.
  18.  Assorted sizes of heat shrink tubing.
  19.  (to be continued)


 Melt solder and have more fun.

Sunday, June 21, 2015

BARS Raspberry Pi event

BARS Raspberry Pi event in Titusville area
Posted by Orlando 147.120 Repeater on Sunday, June 21, 2015

Sunday, June 23, 2013

Field Day Pictures

2013 ARRL Field Day Pictures

pictures taken by J.C. (NT4K)



Sunday, August 29, 2010

KK7B RCX1 converter

Building a KK7B RCX1 6m converter

50Mhz input --> 7Mhz output