Optics related and Audio/ Guitar related tech info pages HOMEauthor: Jeroen Korterik
IntroductionThis is a collection of semi random tech info pages. Most of it is/will be about guitar/ audio technology and a bit about physics & electronics.The site is still under construction, more info will follow
Guitar electronics / Audio related topics:
Sallen Key Lowpass filter transfer function plotter
Soft clipping overdrive using a Spin Semiconductor DSP
The challenge here was to create a 'organic' and 'warm' overdrive guitar sound using a Digital Signal Processor. This page explains how it's done and you can listen to the result.
Ultimate simple measurement of the DC bias of electron tube amplifiers
There are several ways to adjust the DC bias current of electron tube amplifiers and just as many opinions about how to do it right. On this page, a totally different method is explained. It's simple and easy!
Sound comparison of EL34, EL34L and KT77
A youtube demo to systematically compare these JJ manufactured pentodes / beam power tetrode.
An online calculator for the angles at which light that passes through a prism
An online calculator for the polarization states of a bundle that passes through wave plates and polarizers