Cgs synth

>I have a CGS real ring modulator too, it is a very difficult load to
>drive and does all kinds of funny things to the waveshape and levels
>of oscillators driving it, I had similar problems using it with my
>Oakley vco's but it was even worse with VCS3 oscillators, the levels
>dropped to virtually zero.
>
>I was very dissapointed when I tried mine for the first time and it
>took a bit of playing around to get it working properly. My solution
>was to use a TL074 as voltage followers / buffers on the two inputs
>and as a non inverting amplifier on the output to bring the gain back
>to unity as it drops the output signal level quite a bit because of
>its passive design.
>
>These mods make it behave very well indeed and keeps vco output levels
>and waveshapes stable, but it still retains its distinticive sound - I
>find it quite a bit warmer and more organic than the usual four
>quadrant multiplier type ring mod designs.
>
>cheers,
>Allan
>
>
>--- In oakley-synths@yahoogroups.com, "waveform100" <googol@g...>
>wrote:
>> When I patch the Sine-out from any of my Oakley VCO's into a
>Multiple
>> and then into any of the CGS Real Ring Inputs (or out) and hear at
>the
>> same time the Sine (with that Multiple), the Sine is completely
>> changed. I cannot hear the Ringmod-Outs at the same time with the
>> unmodulated, clean Sine from the VCO, because there is no Sine
>anymore.
>> Its like the Real-Ring had some effect backwards to the VCO
>electronic.
>>
>> I don't get it. Is there a solution for this problem?
>

_______________________________________________________________________
Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

> . My solution
> >was to use a TL074 as voltage followers / buffers on the two inputs
> >and as a non inverting amplifier on the output to bring the gain back
> >to unity as it drops the output signal level quite a bit because of
> >its passive design.
>

hello to all -
i wasn`t worried about input waveform distortion so i just used as tl074
post-amplifier and brought out a panel control for the output gain. i have found
that this works well also and has been tried with serge and doepfer vco`s.
definitely a different sounding ring mod, not at all like the 1496`s. less
"metallic", more "intermodulated". very nice.
best,
dave




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