On the day mini-amps were invented, electric guitar players the world over rejoiced. No longer would they be house-bound when jamming out on their favourite guitar. It is a doubly wondrous day ...

Calling Boss's Katana range of modeling amps a success is undercooking it somewhat: it's made the Japanese company become one of the biggest amp manufacturers in the world. But it also presented a ...

[Pinomelean] has posted an Instructable on how to create a mini line following robot using ... The circuit consists of two op-amps that amplify the output of two phototransistors, which ...