[sdiy] CMOS Synth

[Osamu (Sam) HOSHUYAMA]

Hello List,

Thank you very much for the very encouraging words.  I'm very happy.

Rude 66 wrote:
> excellent! i like this very much. now all you need is a whole bunch of
> different colour led's blinking to tempos and frequencies inside the box..
> ands then play it in the dark..

Actually, EGs have LEDs blinking on the board and I first planned to
make 
panels using transparencies.  However, I realized that my vector boards 
are very ugly, so I hid them with sheets of paper.


René Schmitz wrote:
> I like it. Especially the panel art, and colorful knobs, it has "style". 
> The innards are as unique as the looks, so this is a perfect combination.
> 
> I think you have done great work here. Pushing the ideas of a CMOS synth
> into a working unit was surely no trivial task. You came up with lot 
> of designs that enhanced the state of the art.

Thanks a lot.  But it's not so beautiful as you might imagine from 
the photo, which is blurred.  The panels are very weak against scratch.


Scott Gravenhorst wrote:
> Yes, very nice work.  Toy?  I don't know about that, and Osamu, your
> English is quite good.

If my project could encourage someone, that's real pleasure for me.

Any comments (correction) on my english would be appreciated.
One purpose of my stay in Canada is improving my english.

> One thing is for sure, those linear mode CMOS "opamps" do draw significant
> power.  Since my project is an enhanced FatMan, I think I may limit their
> use to where their characteristics are desirable, such as the distortion
> one gets as the output approaches the rails (can make a tri to
> sort-of-sine converter).  

That's a very good idea!  I should've try that for VCOs or LFOs.

> And also as cheesey voltage controlled
> resistors.  Of course, as logic elements too.

> Thanks for this, but where are the sound samples?   (c:

Actually, I don't have so many musical tools.  I'm not a musician, but
just an
engineer.  But I'd try to prepare some samples using midi data on the
net.

This week I have a business trip, and next weekend I'll have a guest
from 
Japan.  Please wait at least for 2 weeks.


John L Marshall wrote:
> Excellent packaging. Colorful knobs. Lots of input and outputs. I like knobs
> and jacks.
> Building sure beats thinking about building.
> I lie the simplicity, but effectiveness, of some of the circuits.

jhaible wrote:
> Very nice stuff, Sam !

Thank you very much!

Sam Hoshuyama
-- - ---  - -- ------ - -------- -- - ---- -
Osamu (Sam) HOSHUYAMA      houshu at rogers.com
                              Ottawa, CANADA
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