Thursday, February 27, 2014

Links Fixed, Podcast Version of Hamfest Presentation

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Armand, WA1UQO, with BITX 17   Using Dropbox to post the video of my BITX presentation at the hamfest didn't work out too well, so...
3 comments:
Wednesday, February 26, 2014

Hamfest Presentation on SolderSmoke and BITX (Video)

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The Vienna Wireless Society of Northern Virginia asked me to give a talk at their 23 Feb 2014 hamfest.  I spoke about homebrewing and the...
3 comments:
Tuesday, February 25, 2014

HB Chips! Discrete Component Version of 555 Timer

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The world would be a better place if we could do more of this...  Thanks to David Cowhig for alerting me to this wonderful development. D...
2 comments:
Sunday, February 23, 2014

Tuna Tin Mojo Transferred to BITX17!!!!!!

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It happened at the Vienna Wireless Society's Winterfest Hamfest today in Northern Virginia. That is Doug DeMaw's original Tuna Ti...
2 comments:
Saturday, February 22, 2014

Brilliant! New "TX Factor" Ham Radio TV Show from the UK

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I really enjoyed this.  It is the first episode of what I hope will be a long-running series. These guys did a great job.  Excellent qual...
1 comment:
Wednesday, February 19, 2014

Taking the Knack a Bit Too Far

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Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts,...
Monday, February 17, 2014

BITX 17 Build Update: More Filter Maintenance

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      Having had great success in straightening out the 11 MHz filter in my BITX 2040 (scroll down for details),  today I decided ...
2 comments:
Sunday, February 16, 2014

ISEE-3 Spacecraft Returns after Being Forgotten

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Hack-A-Day has issued a challenge to hams and hackers: http://hackaday.com/2014/02/14/call-for-hams-and-hackers-welcome-iceisee-3-home/#...
Saturday, February 15, 2014

Homebrew Junkbox Machine Tools

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In the book "The Ugly American"  the hero (the ugly guy!) come up with a way to use old engine blocks to build water pumps to h...
Thursday, February 13, 2014

BITX 2040 Build Update #10 : Fixing my Filter

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That dip on the high side of the passband was bothering me.  The GPLA crystal design program predicted it, and indeed, when I measured th...
2 comments:

Back to the W7ZOI/W7PUA Power Meter

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Recent e-mails and Facebook postings from Jim (W8NSA) and Michael (AA1TJ) got me thinking about my old W7ZOI/W7PUA power meter.  The 15 in...
4 comments:
Wednesday, February 12, 2014

A Very Simple SSB Transmitter

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    I found this in the files section of the BITX20 Yahoo Group.  There is no information on the source.  I see two balanced modulat...
6 comments: