Did you see my blog on The Magic of Mock Relays in which I picked up a really tasty antique relay from my local electronics store?
After I found that antique relay, I became enthused with the idea of creating either a simple relay-based computer – or maybe just a piece of "relay-art" in the form of a bunch of relays clicking away doing something in a glass-fronted wooden display case on my wall.
But they are sooooo expensive. The one I picked up cost me only $5, but equivalent models cost anywhere from $25 (on eBay) to $100 (from special stores that supply the government with obsolescent parts).
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.