Re: RE: [sdiy] How Many Oscillators?

[Roman]

---- Wiadomość Oryginalna ----
Od: "Cornutt, David K" <david.k.cornutt at boeing.com>
Data: Fri, 26 Sep 2003 11:51:11 -0500
Temat: RE: [sdiy] How Many Oscillators?

>Form factor, power, and patch cord connector types
>all play into it.  For starters, I'm limiting myself
>to the MOTM form factor, although I'll probably break
>that rule soon as there are some Blacet and PAIA things

I'd say you're lucky if you have chosen one standard.
I made my modular taking big care in choosing size,
voltage, connectors, layout etc. and now I see it was
sometimes wrong, so my next modular (just made new lovely
cabinet last weekend) would be a bit different.
Not totally different because I'm stuck now with
previous designs, but "face-lifted"

>I'd like to have; I'll probably mount those up with
>adaptor panels.  For power, initially I'm sticking
>with +/- 15V and MOTM distribution boards, but there
>are some modules that require +5 for logic so I'll have

you can always add 5V regulator on the module and still
use +/-15V power cable. If more power is needed,
you can mount additional 5V power supply and separate
cables to the modules requiring that 

>difficulty... I have a grand plan to eventually build some
>universal power supply boxes that include all of +/-15V,
>5V, and +/-12V (the latter is what a lot of the European

You can add small PCB with 12 regulators and put it
in heatshrink on the power cable for each 12V module.
Or right at the power connector. Then you need only
15V power supply.
I do that with my old 9V ones. Yes, 9V was one of
the stupid things I came up...

>oscillators could be full range -- continuously sweepable
>from a few cycles/minute all the way to 20 KHz.  But I
>recognize the practical limitations of building such a thing.
>We're talking tuning and scaling across 20 octaves...)

IMHO if it makes sweet noises, but changes timbre every
2 octaves due to tuning/scaling problems, it's good to me.
I'd use digital synth if I wanted it so boring perfect.
My quad VCO isn't even temperature compensated and still
very usable.

Roman