One of the more common building blocks of a voltage controlled amplifier (VCA) is a differential pair amplifier. For a VCA configuration, the (top) two bases receive a control voltage for gain control ...

The proliferation of end-use electrical and electronic loads in customer facilities — residential, commercial, and industrial — is not slowing down. Despite economic pressures, utility customers are ...

At one time, almost all electrical loads were linear — those that weren't made up such a small portion of the total that they had little effect on electrical system operation. That all changed, ...

In Part 1 of this five-part series, we examined FET voltage controlled resistors, basic voltage controlled resistor circuits, and a balanced or push pull voltage controlled resistor (VCR) circuit.

The LT1819 dual, unity-gain stable voltage feedback op amp has a total harmonic distortion of -85dB at 5 MHz at a voltage output of 2 Vp-p. Current consumption is just 9 mA with a 500_ load. The ...

Scientists in the Middle East have developed a series active filter to improve power quality in grid-tied PV systems, consisting of an inductor, two capacitors, and four transistor-diode pairs. The ...

We've seen a number of strange stomps over the years, but nothing quite compares to the Plasma Pedal from Gamechanger Audio. This innovative fuzz box routes a guitar's signal through a gas-filled tube ...