[sdiy] Gakken SX-150

[fmg]

On Sun, Aug 31, 2008 at 12:40 PM, HOSHUYAMA <houshu at muj.biglobe.ne.jp> wrote:
> Hello List,
>
> I think you know of Gakken SX-150, which is a supplement of a Japanese book.
> Basically, most of the information is in Japanese.  However, some English
> information is available at Matrixsynth blog:
>
>  http://matrixsynth.blogspot.com/search?q=SX-150
>
> Its schematic is already revealed in its instruction manual, however,
> it does not include component values.  To get the schematic with component
> values, which is essential for us, I made one from the open information
> on the internet and some measurement of an SX-150.
>
>  http://houshu.at.webry.info/200808/article_3.html
>
> Actually, this small synth was designed by our Naoki Iwakami
> (AKA. "GAN" in this list).  The design is unusual to save the cost,
> but very clever and unique!
>
> Enjoy,
>

Very interesting circuit, and unusual, too. Sadly have to wait
Saturday to come back home to try a breadboard version ( I want a
working one now  :)
Thanks for the info.

Fabio
.

PS: Is there a missing joint among r4 ,r5, r6?

--
Fabio Gonzalez
Posadas, Argentina