But an analog computer built with a handful of op amps can model a ball in a box pretty handily too. OK, it takes quite a large handful of op amps and considerable cleverness to model everything ...

Analog circuitry can be used instead of a microcontroller for many different applications, and this is one of them. The circuit consists of two op-amps that amplify the output of two ...

Part 5 provides spec summary of the GP/R K2-W vacuum-tube op amp and discusses measurement ... Dyer, “SPICE Modeling of Common Active Devices—An Overview,” Electronic Design, Nov.