Archive for date: January 23, 2011

555 Contest

January 23, 2011 | Amateur Radio, electronics | By: Mark VandeWettering

Some idle musings by hacker Jeri Ellsworth has spawned a contest for designs using the 555 timer. It’s not really my area of expertise (and designs are due by March 1, which doesn’t mesh with my current priorities) but if you have some good 555 ideas, check it out: 555 Contest: Welcome!.

Alan Yates’ Laboratory – G3XBM’s XBM80-2 Trivial 80 Metre CW Transceiver

January 23, 2011 | Amateur Radio | By: Mark VandeWettering

My “on-this-day” blog sidebar indicates that I was looking at Roger, G3XBM’s XBM80-2 transciever: a fiendishly clever low parts count CW transciever for 80m. I’ve been pondering it a bit as something I should just tack together (I think I have all the parts in my junk box) so I’ve been staring at the design […]