[sdiy] TC9400 and XR4151 in synths & other ramblings

[ChristianH]

And apparently that's what the developers of the Chroma oscillators thought
as well.
Seems funny that a Chroma chip is used to recreate a CS-80 circuit,
since obviously they had at least a _little_ look at the CS-80. Similar
16 voice/single osc base architecture, LPF/HPF combo, and poly pressure
(though most Chromas don't have the key sensors, but everything else is
in there).

Christian


On Thu, 24 Feb 2005 22:11:42 -0500 (EST) The Old Crow
<oldcrow at oldcrows.net> wrote:

>   I recently used the XR4151 in my module that recreates the Yamaha 
> IG00153 (CS-80) VCO.  Seems made for the task.
> 
> Crow
> /**/
> 
> On Thu, 24 Feb 2005, anthony wrote:
> 
> > I'm surprised that I don't see much use either of these chips: TC9400 or
> > XR4151 in synth work. The commonsound atoner uses the 4151 and "The
> > Modern Implement Company" mentions the TC9400 used in something called
> > The Rube Goldberg Function Generator.