In the first of three parts, Andy hypothesizes that the K2-W Analog Computer Op Amp’s design has some unrevealed mad science in its input-stage design. 1. K2-W Op Amp schematic from Bob Pease’s ...

The stylish, compact, and great-sounding Spark Mini may be pricey, but it also doubles as an uber-portable practice amp. Guitar amp vendors are known for selling the best-sounding consumer audio ...

It seems that guitar amp companies making Bluetooth speakers could be the new thing. UK-based Orange Amps has just launched a duo of Bluetooth speakers called the Box and Box-L. The first is a battery ...

When it comes to our analog designs, op-amps tend to be just another jellybean part. We tend to spec whatever does the job, and don’t give much of a thought as to the internals. And while it doesn’t ...