They were museum pieces by the early 1990s: a motorized roll of graph paper across which a pen would traverse in proportion to the voltage ... op-amps. We have become so used to DC amplifiers ...

The Wheatstone bridge is a ubiquitous circuit configuration that is useful in detecting small changes in resistance.

[lcamtuf] thinks so, and his guide to choosing op-amps makes a good case for rethinking what parts you should keep in stock. For readers of a certain vintage, the term “operational amplifier ...

WiiM now sells the Vibelink Amplifier, its first standalone amp. It doesn't offer any Wi-Fi streaming or Bluetooth ...