Armstrong Memorial Transmissions

Here is the site for the Howard Armstrong 75th Anniversary of FM Transmissions:

http://www.wa2xmn.ar88.net/

Be sure to follow the links on that page to the Phasitron Transmitter page. Very nice workmanship.

Today only! 20% off Veterans Day sale on "SolderSmoke -- Global Adventures in Wireless Electronics"

Lulu is at it again. Just use the coupon code VETSDAY and get 20.10% off on your purchase of
"SolderSmoke -- Global Adventures in Wireless Electronics"

"She built her own oscilloscope at age 14." Homebrew Hero: Tatjana Van Vark

AJ8T sent me the link to the web site of this, our latest Homebrew Hero. I don't think she is a ham, but Tatjana definitely has The Knack. Check out that workmanship. The range of the projects is also quite astounding. It is so impressive that I really found myself questioning whether this could be for real. But it is.

When you look at the Enigma-like coding machine, note the cryptological challenge at the bottom. Tatjana won't release the tech details of this project until someone cracks the encrypted Haiku! Go for it!

http://www.craftsmanshipmuseum.com/vanvark.htm

SolderSmoke Podcast #127

SolderSmoke #127 has been released! Get it here:

http://www.soldersmoke.com/soldersmoke127.mp3

Topics covered:
Linux Ubuntu and Audio Quality.
Karmic Koala makes you EVEN YOUNGER
Reverse Culture shock, Woodpeckers, and the Washington METRO system
The smell of an old HT-37
75 meter AM
DaVinci Code QRSS rig on the air
Cul-de-sac astronomy with TWO telescopes
READING: SPRATS, Hot Iron, Sky Buddies, Wired
Jeri Ellsworth's homebrew transistors
Tatjana Van Vark's homebrew Enigma-like machine
MAILBAG
Antenna work and hamfests on the horizon

Homebrew Transistors!

None of those store-bought parts for Jeri Ellsworth! Once again she makes us all look like a bunch of pathetic appliance operators. I like the "harvesting of Germanium" from a 1N34. And I found very interesting her comment about "early hobbyists" cracking open 1N34's and turning them into transistors by adding phosphor-bronze collectors.

This all makes me want to fire up my Fool's Gold crystal radio. WFAX is right down the road...

BTW: I'm very pleased to report that Jeri is currently reading "SolderSmoke -- Global Adventures in Wireless Electronics." I hope she likes it. She definitely has "The Knack."

SolderSmoke Podcast 127 is almost ready.

Back on the air with QRSS QRPp

I dusted off the old G0UPL QRSS QRPP FSK 30 meter transmitter (built and last used in Italy) and hooked it up to about 50 feet of AC line cord stretched low across the new Northern Virginia backyard. I hooked it up to my Kempton Park power supply (thanks for the chip Tony!) and fired up my freq counter (also from Kempton Park -- remember the chip I soldered in backwards?) I put a field strength meter next to the wire and tuned my L network for max smoke. Hey, and it worked! My signal is the wavy shark fin-looking thing. I think the wave results from a temp drop in the shack that happened when I opened the door. Just to confirm it was me, I turned the transmitter off for a few minutes. You can see me disappear from W1BW's screen.

Its good to be once again emitting EM waves!

Happy Halloween! 20% off SolderSmoke

I hope to have a new podcast out soon, perhaps a Halloween edition. Lulu is offering 20% off on SolderSmoke -- The Book. Just use the coupon code: TRICK305