10th Anniversary Giveaway!

On April 30th, it will be ten years since the "W2LJ - QRP - Do More With Less" blog was born.

In appreciation for all who read this blog, I am going to give something away to one lucky reader. I have a new, mint condition, unused, complete sheet of fifty United States Amateur Radio stamps, issued in 1964 on the 50th Anniversary of the ARRL - Scott #1260. I am going to have the sheet matted and framed - ready for display on some deserving shack wall. All I ask is that you send an e-mail to w2lj@arrl.net - entitled "Blog Anniversary Giveaway". Include your name, call sign and mailing address.

Any Amateur Radio op worldwide can enter. I will package and ship the framed stamps to any destination that the United States Post Office will accept.

The names and call signs will be loaded into a software program such as RandomPicker on April 30th and a winner will be determined. The winner will be announced here, and then the framed stamps will be posted.

Good luck, and thank you for reading!

Wednesday, April 14, 2010

AA0ZZ circuit board is finished.

The circuit board phase of this project has been completed. It shouldn't have taken long; there are only 10 components!



The recommended enclosure is, of course, an Altoids tin. I am not using one for two reasons ...
1) I don't have a punch to make the necessary holes and 2) I have some nice sturdier metal enclosures that I saved from the dumpster at my old job.

In addition to assembling the circuit board, I drilled holes in the enclosure for the three phono jacks that you see in the above photo. For the memory buttons, I am forgoing the ones supplied with the kit and am using some Radio Shack momentary push buttons that I picked up at the Hamfest last Sunday. These are chassis mountable and will go on the enclosure's "top" side.

When all is said and done, the enclosure will be painted a bright yellow to match the PFR3A and I also ordered some decal paper to make my own labels. Yes .... decals. For a $17 kit with a homebrew enclosure - decals are just fine.

I ordered a package of decal paper from DecalPaper.com, and when it comes, I will design and create my own custom decals for this project. Thanks to John AE5X for pointing me to this product from one of his blog posts. Take a look at the video he embedded in his post. The possibilities are limited only by your imagination.

72 de Larry W2LJ

3 comments:

g4ilo said...

Looks good, but what does it do?

Larry W2LJ said...

It's a memory keyer.

Twelve direct-entry commands

Three easy-to-use, 31 character memories kept in non-volitile memory (EEPROM)

5 - 55 wpm speed range

Iambic A or B, straight key, and Cootie Key modes

Sequenced Mute Line (goes low for receiver or T/R switch)

Default speed and modes stored in non-volitile memory (EEPROM)

Speed entered by command or changed on-the-fly via the paddles

Low power - 1 mA active and 1 uA in sleep mode

Very long battery life (sleep mode when not in use) so no power switch needed

Current speed reported upon command

Operating voltage 3-5 volts

600 Hz sidetone (may be turned off)

Autospacing between characters (may be turned off)

Paddle swap command
Keyed line goes low when active

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