[sdiy] FW: Korg Monotron... Korg 35 chip?

[Paul Burns]

-----Original Message-----
From: Paul Burns [mailto:paul at fitvideo.co.uk] 
Sent: 03 July 2010 15:56
To: 'tim102 at tstinchcombe.freeserve.co.uk'
Subject: RE: [sdiy] Korg Monotron... Korg 35 chip?


Hi there , if anyone needs to know about those Japanese sites on the
Monotron or any others I am quite capable of translating the details for
you. 



Regards

Paul Burns
 
-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Tim Stinchcombe
Sent: 02 July 2010 23:40
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] Korg Monotron... Korg 35 chip?

>  Hey all, has anyone else noticed the Korg Monotron?

Reckon so...

A couple of recent threads at Muffwiggler:

<http://www.muffwiggler.com/forum/viewtopic.php?t=14577&postdays=0&postorder
=asc&start=0>

<http://www.muffwiggler.com/forum/viewtopic.php?t=18358&start=0&postdays=0&p
ostorder=asc&highlight=>

And there are many Japanese blogs/sites with some great-looking
modifications:

http://www.korg.co.jp/Product/Dance/monotron/welove/

http://beatnic.jp/monotron/

Google translate:

<http://translate.google.co.uk/translate?u=http%3A%2F%2Fbeatnic.jp%2Fmonotro
n%2F&sl=ja&tl=en&hl=&ie=UTF-8>

http://masa921.hp.infoseek.co.jp/monotron_mod.htm

Google translate:

<http://translate.google.co.uk/translate?u=http%3A%2F%2Fmasa921.hp.infoseek.
co.jp%2Fmonotron_mod.htm&sl=ja&tl=en&hl=&ie=UTF-8>

> In the 
> adverts it states that it uses the same filter as the MS-10 
> and the early MS-20. My question is this: The MS-20 has 
> lowpass and highpass filters. The MS-10 only low pass. Would 
> this mean that the korg 35 chip is configurable as both?

The original was, yes, just hook it up slightly differently for highpass...
 
> Would that also mean that I could use one Monotron as 
> highpass, and one as lowpass?

Good question - so far I have not seen a mod to reconfigure a Monotron for
the highpass filter (which may mean it is difficult). Can't wait to get my
hands on one to see how do-able that is! But note that the Monotron isn't
using the Korg35 per se, just the same arrangement of transistors that are
in the Korg35 (as far as I can tell from the various photos of it around the
web).

Tim (still pissed at Korg for not releasing it worldwide in one go)
__________________________________________________________
Tim Stinchcombe 

Cheltenham, Glos, UK
email: tim102 at tstinchcombe.freeserve.co.uk
www.timstinchcombe.co.uk





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