My Teensy Z80 Homebrew Computer A few months ago, I bid on several ‘box of surplus electronic components’ listings on ebay. My lab needed some more components and I saw some of the things I needed in the listing pictures, so thought I’d go for it. I won all of them, at pretty much my lowest bid price, and when I got the boxes was really happy (I paid ~£20 for >£200 of components, most sealed new). At the bottom of one box was a Zilog Z80 CPU, in 40-pin DIP. It’s a Z84C0008PEC, desig...