[sdiy] Korg 35 chip

[Richard Atkinson]

It's the world's dirtiest Sallen & Key low pass filter design - I can't 
believe how noisy the filter resonance gets on this thing.

I had the opportunity to play with a later OTA-based MS-20 today - the gulf 
between the two filter designs is enormous!


On Jun 19 2010, Richard Atkinson wrote:

>This one:
>
>http://www.analogue.org/mr/sas/KORG35.pdf
>
>
>On Jun 19 2010, cheater cheater wrote:
>
>>what letter?
>>
>> On Sat, Jun 19, 2010 at 00:29, David G. Dixon <dixon at interchange.ubc.ca> 
>> wrote:
>>>> wow - and to think korg is actually hosting the info about the mods -
>>>> something has really moved deep down!
>>>
>>> Combine this with that letter that Korg sent somebody (can't remember 
>>> who) about what was inside their KORG35 filter chip, and one forms the 
>>> impression that this is a company made up of dudes a lot like us.
>>>
>>> Cool name, too ("Korg....", like an onomatopoeia of a classic LPF synth
>>> sound).
>>>
>>>
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