Yamaha CS80

The 159 is a linear timing/voltage sequence generator that uses the 
exponential input of the 151 to create the exponential sloped envelopes.

Crow
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On 11/15/2011 9:16 PM, elie wrote:
> Hi, I'm implementing a CS-80 Ring Modulator design on another Yamaha Synth.  No problem getting the Modulator&  buffer amps, VCO chip but the VCA (IG00151)and Envelope Generator (IG00159) are not practical to purchase.
>
> My question is if the VCA and Envelope Generator are Linear or Exponential in function?...not sure if the service manual might answer that so just in case anyone knows?
>
> Thanks!
> Elie
>
>