Yamaha CS80

--- In yamahacs80@yahoogroups.com, "kent_spong" <kent_spong@h...> 
wrote:
> It has come to my attention that in the last year or so I have 
found 
> that no one in the U.K. is restoring CS80's. 

Kent - welcome to the group.  I know you'll be a very valuable 
member!  

> With all the new upgrades comming soon from KSR to 
> make these baby's even better than they were plus the full 
> restoration work that I do already. For example how many of you 
have 
> got unison on your 80. Yep all 16 osc playing together, 

This sounds great!  What is KSR?  Wild guess: Kent Spong Research?  
Is there a website?  When will this be out?  I thought of doing 
something similar, but like some other polysynths (A6? Mono/Poly?) 
have:  hit one key, all 8 voices in unison, hit 2, get 4 & 4, etc.  
It would be nice to have a mode locking it in mono, maybe with 
choices of priority (high note, low note, last note).


> There is alot of people going around saying that 80's go out 
> of tune very easily and that is a common problem with them. Well 
> they are talking out of there arse because every 80 will say in 
tune 
> once done, only the one's that were not tuned correctly go out of 
> tune every three days.

I totally agree.  I drives me nuts reading all the articles about 
how unstable it is.  One of the big advantages of using linear VCO, 
instead of exponential, is better stability, since the exponential 
convertor is where most of the error pops in.  Of course, it also 
lets you bend notes down to DC!!

 David