Merlin Blencowe (2)

1-07-2013 | This Wien bridge oscillator (after Max Wien, 1866–1938) produces a low-distortion sine wave of constant amplitude, from about 15 Hz to 150 k...

1-07-2010 | Most guitar pedals obtain a high input impedance simply by using a large resistor at the input of the first opamp, but this generates a good...