Boss’s Katana series amps have become favorites with guitarists looking for lightweight, durable and affordable amplifiers that offer the sound, feel and response of classic tube amps while ...

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 ...

[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 ...