AW: AW: AW: VCO-1C

[Haible Juergen]

	>Haible Juergen wrote:
	> 
	>> Same for the Mono/Poly. It's grat for all kind of Lead sounds,
	>> and you won't notice the noise. But for low bass sounds, or
	>> dark pad sounds, a good VCA makes a great difference.
	>> Not just in theory - I made a direct A / B comparison with
	>> two different VCAs in the same synth.
	>
	>Between wich VCA designs?

The original one, and my modification (two halves of a
SSM2020 in parallel).

	>> BTW, this standalone filter is noisy as hell, too, so in the
MS-20
	>> a "better" VCA would be overkill. 
	>
	>I think thats the reason Korg made a low noise OTA filter instead! 

Maybe so. Or they just ran out of Korg-35 modules. And while
redesigning it, they took care of the noise as well. The 
"deemphasis" trick would have worked on the Korg-35 filters
as well, and that alone brings 6dB improovement in the mid
and upper range.

	> Did the trident use the same VCA design as the MS20?

I think so. Can anybody confirm ? (Don't have schemos here)

JH.