SV: [sdiy] X-mas gift...

[Rönnberg Niklas]

Yes, I have looked at this page too. I was thinking of making an external
box containing the extra circuits and potentiometers. If the external box
isn't preset the "synth" will work as original. It would look something
like this (on the inside):
http://www.itn.liu.se/~nikro/diy/PS-3_mods.pdf

What do you think? How many basic (and stupid) mistakes have I done? In
this way I could choose waveform and the mix between different waveforms,
as well as in which filter the new waveform will be post-processed.

Next part I must consider is how to change the amplitude envelope, if this
is possible at all.

Maybe I could insert a VCF and an envelope follower, as complement to the
original filters...

/Niklas



-----Ursprungligt meddelande-----
Från: Heitor Alves [mailto:heitor.alves at gmail.com]
Skickat: den 28 december 2004 01:11
Till: synth-diy at dropmix.xs4all.nl
Ämne: Re: [sdiy] X-mas gift...


Hi!

i've found this one...but its about PS-2

http://users.informatik.haw-hamburg.de/~windle_c/TableHooters/Yamaha_PS-2.h
tml

hope it helps ;)


On Mon, 27 Dec 2004 16:21:10 +0100, Rönnberg Niklas <nikro at itn.liu.se>
wrote:
> Hi!
> 
> I got an Yamaha PS-3 this christmas, and I like it. Yes, it's very
simple,
> but there's something about the sound that I like. Anyway, since it's so
> simple I wonder if someone has a schematic, so I can mod it.
> 
> As I understand there are about four different squarewaves, with
different
> pulse widht in the synth, and four analogue filters. Maybe I could insert
> some switches and some mixers to make my own sounds... Anyway a schematic
> would be very useful.
> 
> Best regards, and happy new year!
> 
> /Niklas
> 
>