[sdiy] What is Ref?

[Motohiko Takeda]

Hi, Dan and Lists

 > ...I always check it for stuff.

Wow, I'm so glad to hear that.

REF means the voltage separately made to use it for somewhere sensitive 
to the change of the voltage.
In VCO, sometimes we want to use accurate voltage for tune knobs or 
octarve switches or so.
But it's only a side of my intention. There is another side.
Yes, we are always making voltage for bias for TR's, for examples. but, 
one TR needs voltage and other one needs another.

Ref is fixed voltage. We have +15V and grand or so. And Ref should be 
another roots of schem. if you want to use Ref then use it as is.
If you change the ref then total action of scheme should be changes totaly.
That the goal I intended , but it's not easy to do that.

http://www.aleph.co.jp/~takeda/radio/parm/work/ToySynth-Schem.gif

this is 1VCO with SAW and SQR, Decay only EG and VCA. it's no VCF synth 
for wind controler or so. I think we need at least PWM or so. it's just 
ideas. there is no test yet.

and this is ?pARM?that I build last year and enjoied to play it.
http://www.aleph.co.jp/~takeda/radio/parm/parm-scheme1.gif
this is just analog part only we need MIDI-CV and LFO as digital part or 
so. I shoot some videos and put them to youtube.
http://youtube.com/user/MMTAKEDA55
there is no page about this yet. I'm on my way to write them.

ps. You can chime in on my schem, any time. Give schem a chance.

cheers!

Motohiko Takeda
Tokyo, Japan.