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The Last Link, commentary by w0jrm September 23, 2007

Posted by N9IK in : blogging, humor , add a comment

James Matherly, W0JRM, has written an opinion piece, focusing on some of the silliness of some blog writers, and their lemming-like behavior. A good, quick read. But don’t expect any bright colors or pictures. Go read his piece to find out why.

BLT Construction September 6, 2007

Posted by N9IK in : operating, portable, projects, qrp , add a comment

Well, I finally got around to completing the BLT – Balanced Line Tuner.  It’s not just a balanced line tuner though; it now will tune a coax-fed antenna, and a random-wire antenna, as well as a balanced-line antenna.  It was pretty simple to put together, although I had trouble a couple of times, caused by my shakiness.  Following are some photos of the building process.

blt-tinningtheboard-400x286.jpg

Tinning the PC Board

 

blt-t1-core-400x397.jpg

T1 core

 

blt-t1-secondarywinding-400x372.jpg

T1 secondary winding (wind this first)

 

blt-t1-400x244.jpg

T1 completed

 

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T1 mounted on PC Board

 

BLT - Completed PC Board

The completed PC Board

 

blt-l1-400x630.jpg

L1 wound on core.  L2 & L3 are wound on the same core

 

BLT - Completed PC Board and Toroid (L1 L2 & L3)

Completed PC Board and Toroid (L1 L2 & L3)

 

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Front panel connectors

 

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Rear panel connectors

 

BLT - Wiring

Wiring the panels

 

blt-front-400x348.jpg

Completed.  Front view.  Crappy paint job.

 

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BLT completed.  Rear panel.  Crappy paint job.