What should I do with this thing?

Pretty cool, don't you think? I found this among the stuff that arrived from storage. I must have bought it at a hamfest sometime in the distant past. Note the miniature TUBES. Note the place of manufacture: BEAVERTON, OREGON. The internal construction is beautiful, with good shielding between each stage. It has a nice AC power supply. I have no real need for a 2 meter converter... So, what should I do with this? It seems to have the potential to become a QRP transmitter. Or maybe a DC receiver? Or maybe I should just turn it over to AA1TJ for conversion into something really surprising and marvelous.

Einstein and Lead-Acid Batteries

In "SolderSmoke -- Global Adventures in Wireless Electronics" we discuss the way in which Einstein's Special Relativity explains how and why transformers and coils work. I thought it was very cool to be able to see the role of Einstein's theory in our little toroidal transformers. Yesterday The New Scientist (perhaps the best science weekly in the world) brought news that we need to consider relativistic effects if we want to understand how and why our car batteries (and, I suppose, our gel-cells) work:

Thank relativity every time your car starts. Lead-acid batteries get about 80 per cent of their voltage from special relativistic effects.

Check it out (the NS story is short and gets right to the point): http://www.newscientist.com/article/dn19978-car-batteries-run-on-relativity.html?DCMP=OTC-rss&nsref=online-news

Some Tech Humor

Ron Barrett

Apparently Pluto's demotion from planet status might have been a bit unfair. Researchers say that the rival to Pluto that was discovered six years ago is actually smaller than Pluto.

And I thought this BBC skit on computer problems would yield a few chuckles from the SolderSmoke community. (For U.S. readers: Orange is a big ISP/mobile phone provider in the UK and elsewhere.):
http://www.youtube.com/watch?v=kAG39jKi0lI

Grote Reber, Radio Astronomy, and Tasmania

Wow, the website of the National Radio Astronomy Observatory is a real treasure trove, with lots of ham radio info. Check out their page about ham radio's contribution to the exploration of the universe: http://www.nrao.edu/whatisra/hist_ham.shtml

The picture above shows antenna that Grote Reber built in his backyard in Wheaton, Illinois in 1937. It is now on display at the National Radio Astronomy Observatory at Green Bank, West Virginia. That's quite an antenna! Imagine the neighbors' reaction.

NRAO has a page devoted to Grote Reber:
http://www.nrao.edu/whatisra/hist_reber.shtml
I had wondered what had drawn him to Tasmania later in life. Here's the answer:

In the 1950s, Reber sought a field that seemed neglected by most other researchers and turned his attention to cosmic radio waves at very low frequencies (1-2 MHz, or wavelength 150-300 meters). Waves of these frequencies cannot penetrate the Earth's ionosphere except in certain parts of the Earth at times of low solar activity. One such place is Tasmania, where Reber lived for many years. He died in Tasmania on December 20, 2002.

ECHOLINK and WINE: Works very well

I've been away from Echolink ever since my eeemachines PC went toes up and wiped out the Windows XP operating system. Echolink had always been a bit difficult to get running, even under Windows, so when I returned the eeemachne to life with Ubuntu, I never really even considered trying to get Echolink running on it. There is no Linux version of Echolink. But then, yesterday, somehow I got inspired. Something told me I should give Echolink a try using the Linux WINE Windows emulator. After all, I'd found that LTSpice worked great under WINE. I went to the Echolink download site, and hit the button. Ubuntu Karmic Koala (the version I am using) automatically fired up WINE and put the new windows program in the appropriate place. Echolink started right up. That night I was able to check into the Sunday evening QRP group for the first time in years. It was great. Now I'm on Echolink in the morning, talking to hams in Western Australia. The cheers for Jonathan Taylor, creator of Echolink! And three cheers for Ubuntu (especially Karmic Koala)!

The Arduino Documentary

Arduino The Documentary (2010) English HD from gnd on Vimeo.

Embedded controllers may seem a bit far afield for SolderSmoke. After all, I kind of gave up on surface mount, and have pretty much resigned myself to "hardware defined radios." (Someone sent me a picture of a T-shirt that kind of captured the sentiment: "I PROGRAM IN SOLDER!") But still, for a number of reasons I find Arduino intriguing. Aside from the amazing things you can do with this device, I like the homebrew, hands-on aspect of it. As you will see in the documentary, there is a real spirit of international collaboration in Arduinoland -- Italians, Spaniards, Colombians, Americans all working together on the project (the documentary itself is also available in Spanish). I also like it because it has its roots in Italy. So, even if you are not into embedded controllers, check out the documentary. I think you will like it.

SolderSmoke Podcast #129

January 8, 2010
SolderSmoke Podcast #129

http://soldersmoke.com/soldersmoke129.mp3

Introducing Cappuccio (pictured above)
"On the Cover of the Hot Iron"
Old tech, new tech:
Hammarlund HQ-100
Lafayette HA-600 (A)
WSPR: VK6 on the grey line, also Wake Island, and Alaska
How I fixed a broken GPU chip using a light bulb!
EMRFD's cool mod of the SBL-1 Diode Ring device (from W6JFR)
MAILBAG

Please send me reports on the audio quality. I made some changes...