Month: May 2013

Component of the Month: Op Amps

Component of the Month: Op Amps

Each month this year, we’re exploring a different electronic component, delving into what it is, how it works, and how you use it in projects. Last month we covered resistors, and before that we looked at batteries. This month we examine operational amplifiers, often called op amps. An op amp is an electronic component used […]

DIY Robot Building, Circa 1956

DIY Robot Building, Circa 1956

Stuart “Mr. Retro” Sandler built a super retro robot from plans found in a 57-year-old copy of Boys Life he’d purchased from eBay. Stuart had heard about the robot as a teenager and wrote to the magazine for the copy of the plans. They sent him a photocopy but left out a couple of key […]