Though I've often pined over late-70s audio gear, with its backlit gauges, heavy metal dials and woodgrain solidity, I've never been sad about my own receiver lacking a built-in drum machine. Until now. Our friends over at Sound+Vision have put together an excellent guide to the high-quality, bargain-priced amplifiers and pre-amplifiers you should keep an eye out for at yard sales and on eBay. Including the drum-machine-equipped Kenwood KR-1670 tank you see here. Check it out at soundandvisionmag.com.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.