Elliott Sound Products | Project 47 |
Comments I have made are indented, and in this type, so it is really easy to see what I added to the original. If this is not enough, I have also added my 'tag'. RodE
Some readers might be baffled by Stephan's claim that the frequency is not important, however this is the case provided the chosen test frequency is within the normal bandwidth of the amp - preferably at an approximate centre frequency. For guitar and most music, 400Hz is actually a better test frequency than 1kHz. Having found the non-linearities and the frequency response, the two combine to provide the overall characteristics of the original. RodEWhen I had a good solution, I took some measurements of my circuit and compared it to the VOX. When the measurements of my circuit where not near enough, I modified the circuit and took some more simulations with PSpice. And so on.
Tune 1 & 2 | Wave / MP3 |
Please Note: All wave and MP3 files will have to be obtained from Stephan's site, as they are causing me grief because of the file sizes and my traffic limits. The above links will take you to the bottom of this page for the link to the original article. RodE
Tunes | Wave / MP3 |
Tunes | Wave / MP3 |
Tunes | Wave / MP3 |
Tunes | Wave / MP3 |
Copyright Notice. This article, including but not limited to all text and diagrams, is the intellectual property of Stephan Möller, and is Copyright (c) 1999/2000. Reproduction or re-publication by any means whatsoever, whether electronic, mechanical or electro- mechanical, is strictly prohibited under International Copyright laws. The author (Stephan Möller) grants the reader the right to use this information for personal use only, and further allows that one (1) copy may be made for reference while constructing the project. Commercial use is prohibited without express written authorisation from Stephan Möller. |