ALEXANDRIA, VA.—As television engineers age, those brought up in the era of analog signals and the subsequent transition to digital are retiring and talking hard-earned knowledge with them. Younger ...

Audio transformers improve sound quality by removing interference from audio signals. This interference, or ground noise, is caused by voltages from other devices and produces a humming or buzzing ...

The single op-amp differential amplifier shown in Figure 1 is often used as an audio balanced line receiver. Obtaining high common-mode rejection is a critical requirement that requires four ...

As you probably know if you've been shopping for cables, coax for most video applications is "75 ohm" coax–but what the heck does that mean, anyway? This article is a short, non-technical explanation ...

The scientists verified broadband impedance matching applications of BMIT by experimentally developing a 2-D hexagonal array of steel cylinders embedded in agarose hydrogel. The acoustic impedance of ...

Q: The percent impedance of a transformer is also the voltage drop of the transformer at full load. What is the voltage drop of a transformer at various other load levels, i.e. 25%, 50%, 75% or in ...