[sdiy] New schematics

[Peter Grenader]

Sam,

These circuits look interesting.  Ken Stone has now earned himself a place
in history - it was he that realized that the Steiner input configuration
could be modified so that instead of a rotary switch selecting which one of
the three inputs would receive the input signal, that the switch could be
bypassed altogether, allowing for three separate inputs (one for each filter
mode) instead.

Way to go, Ken!







houshu at muj.biglobe.ne.jp wrote:

> Hello List,
> 
> I updated my site with several new schematics.
> 
> http://www5b.biglobe.ne.jp/~houshu/synth/index.html
> 
> Most of the new schematics are not built yet.  However, I'm sure I
> can't take time and space to test them myself for a while.
> I thought some of my ideas could be inspiring for some of the list
> members.  So, I decided to publish them.
> 
> * Variable slope-ratio triangular/sawteeth waveshaper (AKA Tillman's
> modulator)
> 
> http://www5b.biglobe.ne.jp/~houshu/synth/WvShp0305a.gif
> http://www5b.biglobe.ne.jp/~houshu/synth/WvShp0306.gif
> 
> * VCFs
> 
> - Simpler design of totem pole VCF:
> http://www5b.biglobe.ne.jp/~houshu/synth/VcfTp0211.gif
> 
> - Biquad filter with Steiner-VCF-style function:
> http://www5b.biglobe.ne.jp/~houshu/synth/VcSvf01a.gif
> 
> - Moog style HPF (Heavily modified for my taste) :
> http://www5b.biglobe.ne.jp/~houshu/synth/Vchp0302.GIF
> 
> - New style filter (with smooth asymmetrical distortion) :
> http://www5b.biglobe.ne.jp/~houshu/synth/VcfCtp0211.gif
> 
> * VCA
> 
> - A method to increase the input dynamic range:
> http://www5b.biglobe.ne.jp/~houshu/synth/Vca0302.gif
> 
> * EGs
> 
> - Output buffers have been changed.
> http://www5b.biglobe.ne.jp/~houshu/synth/EgMos0210a.GIF
> http://www5b.biglobe.ne.jp/~houshu/synth/Eg0301d.GIF
> 
> Enjoy,
> 
> Sam Hoshuyama
> Kawasaki Japan
>