I would like to recommend the CGS Tube VCA Timbre modulator for three reasons:
1) It sounds like what you want. From what I've heard it is very
warm and smooth sounding, it's largely voltage controllable, and it
can produce asymmetric distortion. One would fit nicely in 1U with
four knobs and four jacks.
2) You can get the PCB's from Ken Stone, and even though a complete
kit is not available, it is a very simple circuit. If you eliminate
the LED's, it only uses three active components: two dual op-amps,
and one tube.
3) I'm planning on building one, so I would like to get a bunch of
guys interested, so we can save money on buying a bunch of panels :)
On 5/8/07, Dave P. put forth:
>
>I'm looking for one that sounds clean and musical, sort of like clean
>digital FM sweeping or like the Nord Modular WaveWrapper module or
>like the middle section of a Serge Wave Multiplier module (even
>harmonics). Most of sound clips I've heard on the various web sites
>(for example Bridechamber and Bananalogue WVX) sound like very harsh
>distortion boxes, most suitable for NIN-type music or SciFi sound
>design. The one that sounds most like what I'm looking for can be
>heard here, at the Yusynth site:
>http://yusynth.net/Modular/index.html
>Click on the Wave Folder module about half way down & you'll get a
>page that has some audio clips.
>
>But this YuSynth module is strictly DIY. I have no problem building
>kits (I built all of my MOTM modules) but I'm not interested in
>fabricating my own PCBs and front panels.
>
>So does anyone have any leads on something like this, either fully
>assembled or in full kit form? Ideally it would be a simple single-
>width module, very similar in size & appearance to the YuSynth module.