[sdiy] Fatman module??

Motohiko Takeda takeda at aleph.co.jp
Mon Mar 3 09:50:26 CET 2003


Hi all and Tim!

That's so impressive idea.
I'm making plans almost same things. Mine is like this...

I build a voice board. That has VCO, VCF and VCA. And there is
small connector or something and it go to controller board. 

The controller board is mounted on the panels that has pots
,knob and switches. this board has EG and LFO.
The connector have 1CV, 3 address line and board enable line
or so. You can send 8 CVs to the voice board. And you can select 
the voice board by board enable line.

If you build both board then it works as mono synth.

And if you get the CEM chips then you can build voice board
easily. Don't mind If you can't get them, you can build it 
by discreet components too.

At first, you may build controller board as analogs. If you 
familiar with PIC or AVR, then you can build them as as 
microprocessor base. You you may mount MIDI-CV on it.

This Project's core is sepalating voice core and modulation core.
In my small experience said that the most hard part of self 
building synth is making panels. My first panels are almost 
finish. but there is so many circuit that I want to try out.
But if I build them, I should make another panels again, and 
it makes so down. So I want panels that can use generally. 
If I chenge the voice board then I can play deferent 
configurations so easily. and it may be a poly synth if you 
add some more voice board to it.

Yes, I don't know what kind of voice board will come, but if
this voice board has a special connecter that I want to propose
then you can plug it to the panel and you can drive them easily. 
There should be so many kind of variation of voice board. And 
there also is controller panels. It should be big or fancy, so 
many kind of...

the voice board should be FatMan or BaseAce style and easy to 
build is most important thing I think.

I think that it's amazing for me. How about this?

Cheers,
Motohiko Takeda
Tokyo Japan.



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