the KORG25 hybrid mystery show comes to an end!

[Magnus Danielson]

From: Martin Czech <czech at Micronas.Com>
Subject: the KORG25 hybrid mystery show comes to an end!
Date: Mon, 11 Dec 2000 10:20:43 +0100 (MET)

Hi Martin,

> Do you remember the Korg MS20 filter debate?
> We couldn't figure out what this strange "KORG35" hybrid
> single line package chip was (early models).
> I managed to get hold on one of these, but didn't want to "open"
> it. J.H. made some assumption about the inner circuit.
> I even suggested X ray.
> 
> 
> Then a friendly soul in Japan wrote me an email, containing
> the address of some of the engineers who made the MS20.
> Some Mr. Saegusa.
> His work was gratified and he is now up in the hierachy in
> KORG Japan (the western world seems to like more lawyers
> in the top who have no clue...).

Yuck! Good to see that Japan tradition seems a bit diffrent, but then,
I am not living there... so, the MS20-engineer got elivated, well
deserved! Good news indeed.

> Now, saturday I returned to my old appartment with some
> buckets of paint. What do I see in the mail box?
> Airmail Japan! Korg!

Don't say they can't be good nice engineers!!! This is the way to go!

> Mr. Mori (general manager new products) explains to me
> that his boss (Mr. Saegusa) is really called Mieda,
> but this is the same writing in Japanese.
> Anyway, they found my letter quite cool and therefore 
> included two pages of schematic, test circuit etc. for
> the KORG25 hybrid!
> 
> 4 bip trans
> 1 jfet
> 6 resistors
> 
> not quite the proposed circuits...

Cool!

> The problem is: it is explicitly forbidden to gain
> economic advantage from this information.
> And I will respect that. Point.

Not a hard point to understand. Not that I like the restriction, but I
can understand their point.

> You know all the Doepfer case. If I put this information
> on my web page, there may be a commercial KORG MS20 filter clone
> very soon.
> 
> Now, I consider me to be trustworthy, therefore I can not
> publish this in the moment.
> 
> Any suggestions how to avoid this conflict?

Touchy.

There are a few methods that springs to mind:

1) Write a kind mail to Mr. Mieda and kindly ask for permition to
   publish the material provided alongside some suitable copyright
   message and "licence". If Korg find such a solution feasable then
   it would allow for a simple and cheap spread of the material.

2) Lost the other methods from my mind. The above seems like a
   sensible thing to do.

I'd sure like to see those pages!

Cheers,
Magnus