[sdiy] Korg MS-10 Filter Recreation? (Got Korg IC35 ?)

[Cynthia Webster]

on 8/15/03 9:15 PM, The Old Crow at oldcrow at oldcrows.net wrote:

> 
> I believe the Korg35 IC internal configuration was provided on request
> to someone a few years back (JH, perhaps?)  The MS-10 filter itself is
> just the circuit section between test point 7 and test point 10 in the
> schematic you indicated.  (Between points 10 & 12 is Korg's famous
> "cheapest VCA in the universe", which consists of: TR9 (OK, and a few
> biasing resistors).  The control feedthrough is atrocious. ;)
> 
> Googling for "korg35", I found the info here:
> 
> http://www.geocities.com/SoHo/Museum/4459/circuits/korg2.gif
> http://www.geocities.com/SoHo/Museum/4459/circuits/korgsch2b.gif
> 
> No idea who this site belongs to, probably someone on this list.
> Only caveat is Korg says not to make money from the information.

Yo, Crow!

You really hit the jackpot here on this one!

(thanks!) 

Cynthia


> 
> Crow
> /**/
> 
> On Fri, 15 Aug 2003, Cynthia Webster wrote:
> 
>> Howdy All!
>> 
>> I'm curious if anyone has done a recreation of the Korg MS-10 filter?
>> 
>> Apparently it is not simply the low pass half of the filter
>> from the Korg MS-20, (~which~ version of the MS-20! there are several).
>> 
>> Anyone out there have a PCB layout for the MS-10 Filter?
>> or know where the Korg IC35 or IC-35 chips specified in the schematic can be
>> found?
>