[sdiy] OTA performance (was SSM chip reissue)

[Paul Perry]

It would be a wonderful thing, if Oberheim had somebody 
deliberately unmatching OTAs..

Seriously though, I very much appreciate your comments
on this.. I suspect that a lot of unhappiness in my life
was due to unmatched LM13700 halves.

paul perry Melbourne  Australia 

----- Original Message ----- 
From: "Michael E Caloroso" 
> You're confusing the OTAs in the polyphonic glide circuits in early
> OB-X versions, which were not matched.  Those unmatched glide OTAs
> resulted in very fat multi voice unison sounds because the glide rates
> wasn't the same between voices.  It was considered a desirable enough
> "defect" that Oberheim implemented unmatched glide rates in the
> digital glide of the OB-SX and subsequent models.