Thursday, June 27, 2013

Arduino Sidecar (instead of a Shield)

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In my last post I described my Arduino Keyer Kludge.  In that project I didn't use the standard "shield" board that normall...
1 comment:
Wednesday, June 26, 2013

Paddle Output Arduino Keyer Kludge (video)

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Ooops -- I got my keyer terminology wrong in this video.   The K1EL keyer just needs a "paddle keyer" input, not an iambic keye...
2 comments:
Saturday, June 22, 2013

SolderSmoke Podcast #153 -- SPECIAL FDIM PODCAST

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SolderSmoke Podcast #153 is available for download: http://soldersmoke.com/soldersmoke153.mp3 June 22, 2013  Manassas Hamfest Build...
6 comments:
Thursday, June 20, 2013

A Billion Pixels From Mars

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Don't miss the hi-res version.  Link and background info here: http://www.jpl.nasa.gov/news/news.php?release=2013-205&cid=release...
Saturday, June 15, 2013

Feynman's Red Book (on the Sino-Indian Frontier)

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Today I bought a copy of "Feynman's Tips on Physics."   I wasn't sure about buying it, but this story in Ralph Leighton...
2 comments:
Friday, June 14, 2013

The Jamesburg Dish

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Mama mia!  That's an antenna!  This is the skyhook that the very hip people in yesterday's video (scroll down) are using to send ...
Thursday, June 13, 2013

LONE SIGNAL: SETI gets cool. Perhaps TOO cool! (VIDEO)

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Slashdot alerted me to this new SETI-like effort to communicate with extraterrestrial civilizations.  It is called LONE SIGNAL.  Check out...
1 comment:
Wednesday, June 12, 2013

The Manassas Hamfest

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Elisa heroically accompanied me to the Manassas Hamfest on Sunday.  We had fun.  I thought they had a good turnout of vendors and tailgat...
6 comments:
Sunday, June 9, 2013

OOPS! Why the AD9850 DDS Boards are So Inexpensive

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N3ZI has a very plausible explanation for the low price (about 9 bucks!): My guess is that this is a liquidation due ...
7 comments:
Saturday, June 8, 2013

R-390A and Homebrew TX put in Transceive Mode (VIDEO)

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N8ZRY has a very nice video on his recent adventures with the legendary R-390A receiver (want one!) and his homebrew 20 meter SSB transmit...
2 comments:
Friday, June 7, 2013

Dutch Knack During WWII

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    There is a very nice article on the MAKE blog this morning:  http://blog.makezine.com/2013/06/06/an-early-maker-story-from-hollan...
Thursday, June 6, 2013

Quote of the Day: On Tinkering

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Finally, some justification for my "build first, design later" method: "Contraptions, machines, wildly mismatched objects w...