[efm] Re: [sdiy] 303d

tomg@efm efm3 at mediaone.net
Fri Mar 16 08:01:58 CET 2001


<rant on>

That sucks so very much...Here is just the end of the test
file as a wav. Even though it's a sample and doesn't really
sound like it should ether, it shows MP3 for what it is...
I don't listen to mp3 cause I can't stand it. People who are
freaked about trading this crap might as well be concerned
with the dubbing of am radio on to mono cassette! JMO

<rant off>

http://www.geocities.com/efm_gc/303free/303d-end.wave

Tom



> Here's a short demo of the tb vco and vcf . They are mostly
> real except, I've changed the bias scheme so that everybody
> is happy at +/-12V and stuffed the vco in a 3046. Oh....The
> vcf is entirely discreet but will end up mostly in 3046s too.
> 400K
> http://www.geocities.com/efm_gc/303free/303d-demo.mp3
>
> Here is the scaling test. It screws MP3 up big time! 800K
> http://www.geocities.com/efm_gc/303free/303d-test.mp3
>
> No midi or sequencing this time it's all real time Tom...
>
> And here's a pic or two of the glob of wires that makes this
> all possible.....I really just tossed these in to make Harry
> freak. Sit down before you look Harry......;-)
>
> http://www.geocities.com/efm_gc/303free/303d-bench.pdf
>
> Tom
>
>
>
>
> > The tb VCO now lives in a 3046....I'm happy! This is going
> > to work this time!
> >
> > Tom
> >
> >
> > > My problems have been numerous and until today mostly
> > > unresolved...The 303 VCO had a lock-up problem. Once
> > > out of range blamo! no VCO. It's now solved and has the
> > > range we normally associate with the VCO4 or ASM1
> > > oscillators, no lock up what so ever.  It also hit the supply
> > > so hard that the VCF tended to FM from the rails....Also
> > > fixed! ....everything I wanted to fix has been resolved. So
> > > I'm off to do the pcboard layout again this time with the
> > > "real" 303 guts.  We'll find out how it sounds in a few days.
>
>
>
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