[sdiy] Looking for keyboard circuits

[Mark Olson]

I believe the circuit Matthias refers to is the one at the heart of  
this:

http://electro-music.com/forum/topic-29746.html

Mark


On Jun 17, 2009, at 3:52 AM, <Matthias.Herrmann at jeppesen.com> <Matthias.Herrmann at jeppesen.com 
 > wrote:

> there is a keyboard/scanner circuit in thomas henry's book 'build a  
> better
> music synthesizer', which i don't wanted to scan and spread without  
> his
> permission.
>
> cheers,
> matthias
> ___
> www.fonitronik.de
>
>
> synth-diy-bounces at dropmix.xs4all.nl wrote on 06/17/2009 09:41:47 AM:
>> I'm in the market for a keyboard circuit, preferably of the matrix
> scanning
>> variety.  I've got two keyboards from an old organ I gutted recently,
> and I
>> want to adapt them for use with my modular.  They are configured  
>> for a
>> 12-row matrix (i.e., by the octave) instead of the usual 8, but I  
>> think
> I
>> can work around this.
>>
>> I've looked at Ray Wilson's circuit on MFOS quite closely, and I  
>> think I
> can
>> adapt this to my needs.  However, I haven't found anything else,  
>> and I'm
>> mostly just looking for other options to compare and get ideas from.
>>
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