Yamaha CS80

Hi David,

   The VCO153 and GX1BPF will be assembled 5U-format modules I will be 
offering myself, though my company.  The IG153 (retrofit board for 
IG00153 chip) and JH151 (retrofit for IG00151) are likewise 
pre-assembled SMD boards for use in replacing those custom ICs, and will 
be offered probably around March 2012.  I will also have a small board 
for replacing CA3080 OTAs with a small discrete OTA cell and a board for 
offering a dual matched NPN (or PNP) pairs with an included 1K 3300ppm 
thermal-contact resistor, both boards having a DIL-8 pinout.

   The modules can use a Moog-style front panel if so desired, though 
you would need to get the panels made/lettered--Arrick sells the 
blanks.  At some point I might offer a frac-rack version--we'll see.

   Someone asked about replacing the EG chips.  This is somewhat more 
complicated in that it is hard to get that many parts into a retrofit 
board that would fit reasonably into an IG00152/159 socket location.  
But, I have a solution that involves using a microcontroller to do the 
envelopes with high enough resolution one cannot tell the functions are 
computed in the discrete time domain instead of the continuous time domain.
We'll see.

Regards,

Scott Rider
http://www.cs80.com/
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On 11/14/2011 9:56 AM, David Rogoff wrote:
> Hi Scott.
>
> Good to hear from you.  Look forward to your new modules!  Will they
> also be through Paul / MOTM?
>
>    David
>